diff --git a/app/Http/Controllers/ClosetController.php b/app/Http/Controllers/ClosetController.php
index b2c5ec02..05775952 100644
--- a/app/Http/Controllers/ClosetController.php
+++ b/app/Http/Controllers/ClosetController.php
@@ -59,9 +59,9 @@ class ClosetController extends Controller
             $t->likes += 1;
             $t->save();
 
-            return json('材质 '.$request->input('name').' 收藏成功~', 0);
+            return json(trans('user.closet.add.success', ['name' => $request->input('name')]), 0);
         } else {
-            return json('你已经收藏过这个材质啦', 1);
+            return json(trans('user.closet.add.repeated'), 1);
         }
     }
 
@@ -76,9 +76,9 @@ class ClosetController extends Controller
             $t->likes = $t->likes - 1;
             $t->save();
 
-            return json('材质已从衣柜中移除', 0);
+            return json(trans('user.closet.remove.success'), 0);
         } else {
-            return json('衣柜中不存在此材质', 0);
+            return json(trans('user.closet.remove.non-existent'), 0);
         }
     }
 
diff --git a/app/Http/Controllers/PlayerController.php b/app/Http/Controllers/PlayerController.php
index 17d7b312..f4c506e0 100644
--- a/app/Http/Controllers/PlayerController.php
+++ b/app/Http/Controllers/PlayerController.php
@@ -52,10 +52,10 @@ class PlayerController extends Controller
         $player_name = $request->input('player_name');
 
         if (!PlayerModel::where('player_name', $player_name)->get()->isEmpty())
-            return json('该角色名已经被其他人注册掉啦', 6);
+            return json(trans('user.player.add.repeated'), 6);
 
         if ($this->user->getScore() < Option::get('score_per_player'))
-            return json('积分不够添加角色啦', 7);
+            return json(trans('user.player.add.lack-score'), 7);
 
         $player                = new PlayerModel();
         $player->uid           = $this->user->uid;
@@ -68,7 +68,7 @@ class PlayerController extends Controller
 
         $this->user->setScore(Option::get('score_per_player'), 'minus');
 
-        return json("成功添加了角色 $player_name", 0);
+        return json(trans('user.player.add.success', ['name' => $player_name]), 0);
     }
 
     public function delete(Request $request)
@@ -78,7 +78,7 @@ class PlayerController extends Controller
         if ($this->player->delete()) {
             $this->user->setScore(Option::get('score_per_player'), 'plus');
 
-            return json("角色 $player_name 已被删除", 0);
+            return json("trans('user.player.delete.success', ['name' => $player_name])", 0);
         }
     }
 
@@ -96,12 +96,12 @@ class PlayerController extends Controller
         $new_player_name = $request->input('new_player_name');
 
         if (!PlayerModel::where('player_name', $new_player_name)->get()->isEmpty())
-            return json('此角色名已被他人使用，换一个吧~', 6);
+            return json(trans('user.player.rename.repeated'), 6);
 
         $old_player_name = $this->player->player_name;
         $this->player->rename($new_player_name);
 
-        return json("角色 $old_player_name 已更名为 $new_player_name", 0);
+        return json(trans('user.player.rename.success', ['old' => $old_player_name, 'new' => $new_player_name]), 0);
     }
 
     /**
@@ -114,20 +114,20 @@ class PlayerController extends Controller
         ]);
 
         if (!($texture = Texture::find($request->tid)))
-            return json('材质不存在', 6);
+            return json(trans('skinlib.un-existent'), 6);
 
         $field_name = "tid_{$texture->type}";
 
         $this->player->setTexture([$field_name => $request->tid]);
 
-        return json('材质已成功应用至角色 '.$this->player->player_name, 0);
+        return json(trans('user.player.set.success', ['name' => $this->player->player_name]), 0);
     }
 
     public function clearTexture()
     {
         $this->player->clearTexture();
 
-        return json('角色 '.$this->player->player_name.' 的材质已被成功重置', 0);
+        return json(trans('user.player.clear.success', ['name' => $this->player->player_name]), 0);
     }
 
     public function setPreference(Request $request)
@@ -138,7 +138,7 @@ class PlayerController extends Controller
 
         $this->player->setPreference($request->preference);
 
-        return json('角色 '.$this->player->player_name.' 的优先模型已更改至 '.$request->preference, 0);
+        return json(trans('user.player.preference.success', ['name' => $this->player->player_name, 'preference' => $request->preference]), 0);
     }
 
 }
diff --git a/app/Http/Controllers/SkinlibController.php b/app/Http/Controllers/SkinlibController.php
index f0b5c15e..0db480db 100644
--- a/app/Http/Controllers/SkinlibController.php
+++ b/app/Http/Controllers/SkinlibController.php
@@ -32,7 +32,7 @@ class SkinlibController extends Controller
 
         if ($filter == "skin") {
             $textures = Texture::where(function($query) {
-                $query->where('type', '=', 'steve')
+                $query->where('type',   '=', 'steve')
                       ->orWhere('type', '=', 'alex');
             })->orderBy($sort_by, 'desc');
 
@@ -94,7 +94,7 @@ class SkinlibController extends Controller
     public function show(Request $request)
     {
         $this->validate($request, [
-            'tid'    => 'required|integer'
+            'tid' => 'required|integer'
         ]);
 
         $texture = Texture::find($_GET['tid']);
@@ -104,14 +104,14 @@ class SkinlibController extends Controller
                 if ($texture)
                     $texture->delete();
 
-                abort(404, '请求的材质文件已经被删除');
+                abort(404, trans('skinlib.show.deleted'));
             }
-            abort(404, '请求的材质文件已经被删除，请联系管理员删除该条目');
+            abort(404, trans('skinlib.show.deleted').trans('skinlib.show.contact-admin'));
         }
 
         if ($texture->public == "0") {
             if (is_null($this->user) || ($this->user->uid != $texture->uploader && !$this->user->is_admin))
-                abort(404, '请求的材质已经设为隐私，仅上传者和管理员可查看');
+                abort(404, trans('skinlib.show.private'));
         }
 
         return view('skinlib.show')->with('texture', $texture)->with('with_out_filter', true)->with('user', $this->user);
@@ -144,7 +144,7 @@ class SkinlibController extends Controller
         $cost = $t->size * (($t->public == "1") ? Option::get('score_per_storage') : Option::get('private_score_per_storage'));
 
         if ($this->user->getScore() < $cost)
-            return json('积分不够啦', 7);
+            return json(trans('skinlib.upload.lack-score'), 7);
 
         $results = Texture::where('hash', $t->hash)->get();
 
@@ -153,7 +153,7 @@ class SkinlibController extends Controller
                 if ($result->type == $t->type) {
                     return json([
                         'errno' => 0,
-                        'msg' => '已经有人上传过这个材质了，直接添加到衣柜使用吧~',
+                        'msg' => trans('skinlib.upload.repeated'),
                         'tid' => $result->tid
                     ]);
                 }
@@ -167,7 +167,7 @@ class SkinlibController extends Controller
         if ($this->user->closet->add($t->tid, $t->name)) {
             return json([
                 'errno' => 0,
-                'msg'   => '材质 '.$request->input('name').' 上传成功',
+                'msg'   => trans('skinlib.upload.success', ['name' => $request->input('name')]),
                 'tid'   => $t->tid
             ]);
         }
@@ -178,10 +178,10 @@ class SkinlibController extends Controller
         $result = Texture::find($request->tid);
 
         if (!$result)
-            return json('材质不存在', 1);
+            return json(trans('skinlib.non-existent'), 1);
 
         if ($result->uploader != $this->user->uid && !$this->user->is_admin)
-            return json('你不是这个材质的上传者哦', 1);
+            return json(trans('skinlib.no-permission'), 1);
 
         // check if file occupied
         if (Texture::where('hash', $result['hash'])->count() == 1)
@@ -190,7 +190,7 @@ class SkinlibController extends Controller
         $this->user->setScore($result->size * Option::get('score_per_storage'), 'plus');
 
         if ($result->delete())
-            return json('材质已被成功删除', 0);
+            return json(trans('skinlib.delete.success'), 0);
     }
 
     public function privacy($tid, Request $request)
@@ -198,15 +198,15 @@ class SkinlibController extends Controller
         $t = Texture::find($request->tid);
 
         if (!$t)
-            return json('材质不存在', 1);
+            return json(trans('skinlib.non-existent'), 1);
 
         if ($t->uploader != $this->user->uid && !$this->user->is_admin)
-            return json('你不是这个材质的上传者哦', 1);
+            return json(trans('skinlib.no-permission'), 1);
 
         if ($t->setPrivacy(!$t->public)) {
             return json([
                 'errno'  => 0,
-                'msg'    => '材质已被设为'.($t->public == "0" ? "隐私" : "公开"),
+                'msg'    => trans('skinlib.privacy.success', ['privacy' => ($t->public == "0" ? trans('general.private') : trans('general.public'))]),
                 'public' => $t->public
             ]);
         }
@@ -221,15 +221,15 @@ class SkinlibController extends Controller
         $t = Texture::find($request->input('tid'));
 
         if (!$t)
-            return json('材质不存在', 1);
+            return json(trans('skinlib.non-existent'), 1);
 
         if ($t->uploader != $this->user->uid && !$this->user->is_admin)
-            return json('你不是这个材质的上传者哦', 1);
+            return json(trans('skinlib.no-permission'), 1);
 
         $t->name = $request->input('new_name');
 
         if ($t->save()) {
-            return json('材质名称已被成功设置为'.$request->input('new_name'), 0);
+            return json(trans('skinlib.rename.success', ['name' => $request->input('new_name')]), 0);
         }
     }
 
@@ -248,7 +248,7 @@ class SkinlibController extends Controller
         ]);
 
         if ($_FILES['file']['type'] != "image/png" || $_FILES['file']['type'] != "image/x-png") {
-            return json("文件格式不对哦", 1);
+            return json(trans('skinlib.upload.type-error'), 1);
         }
 
         // if error occured while uploading file
@@ -261,12 +261,12 @@ class SkinlibController extends Controller
 
         if ($type == "steve" || $type == "alex") {
             if ($ratio != 2 && $ratio != 1)
-                return json("不是有效的皮肤文件（宽 {$size[0]}，高 {$size[1]}）", 1);
+                return json(trans('skinlib.upload.invalid-size', ['type' => trans('general.skin'), 'width' => $size[0], 'height' => $size[1]]), 1);
         } elseif ($type == "cape") {
             if ($ratio != 2)
-                return json("不是有效的披风文件（宽 {$size[0]}，高 {$size[1]}）", 1);
+                return json(trans('skinlib.upload.invalid-size', ['type' => trans('general.cape'), 'width' => $size[0], 'height' => $size[1]]), 1);
         } else {
-            return json('非法参数', 1);
+            return json(trans('general.illegal-parameters'), 1);
         }
     }
 
diff --git a/app/Http/Controllers/UserController.php b/app/Http/Controllers/UserController.php
index 524db3a6..bc773073 100644
--- a/app/Http/Controllers/UserController.php
+++ b/app/Http/Controllers/UserController.php
@@ -26,21 +26,21 @@ class UserController extends Controller
     }
 
     /**
-     * Handle User Signing
+     * Handle User Checking In
      *
      * @return void
      */
-    public function sign()
+    public function checkIn()
     {
-        if ($aquired_score = $this->user->sign()) {
+        if ($aquired_score = $this->user->checkIn()) {
             return json([
                 'errno'          => 0,
-                'msg'            => "签到成功，获得了 $aquired_score 积分~",
+                'msg'            => trans('user.checkin-success', ['score' => $aquired_score]),
                 'score'          => $this->user->getScore(),
-                'remaining_time' => $this->user->canSign(true)
+                'remaining_time' => $this->user->canCheckIn(true)
             ]);
         } else {
-            return json($this->user->canSign(true).' 小时后才能再次签到哦~', 1);
+            return json(trans('user.cant-checkin-until', ['time' => $this->user->canCheckIn(true)]), 1);
         }
     }
 
@@ -66,7 +66,7 @@ class UserController extends Controller
                 $nickname = $request->input('new_nickname');
 
                 if ($this->user->setNickName($nickname))
-                    return json("昵称已成功设置为 $nickname", 0);
+                    return json(trans('user.profile.nickname.success', ['nickname' => $nickname]), 0);
 
                 break;
 
@@ -77,10 +77,10 @@ class UserController extends Controller
                 ]);
 
                 if (!$this->user->checkPasswd($request->input('current_password')))
-                    return json('原密码错误', 1);
+                    return json(trans('user.profile.password.wrong-password'), 1);
 
                 if ($this->user->changePasswd($request->input('new_password')))
-                    return json('密码修改成功，请重新登录', 0);
+                    return json(trans('user.profile.password.success'), 0);
 
                 break;
 
@@ -91,10 +91,10 @@ class UserController extends Controller
                 ]);
 
                 if (!$this->user->checkPasswd($request->input('password')))
-                    return json('密码错误', 1);
+                    return json(trans('user.profile.email.wrong-password'), 1);
 
                 if ($this->user->setEmail($request->input('new_email')))
-                    return json('邮箱修改成功，请重新登录', 0);
+                    return json(trans('user.profile.email.success'), 0);
 
                 break;
 
@@ -104,7 +104,7 @@ class UserController extends Controller
                 ]);
 
                 if (!$this->user->checkPasswd($request->input('password')))
-                    return json('密码错误', 1);
+                    return json(trans('user.profile.delete.wrong-password'), 1);
 
                 if ($this->user->delete()) {
                     setcookie('uid',   '', time() - 3600, '/');
@@ -112,13 +112,13 @@ class UserController extends Controller
 
                     Session::flush();
 
-                    return json('账号已被成功删除', 0);
+                    return json(trans('user.profile.delete.success'), 0);
                 }
 
                 break;
 
             default:
-                return json('非法参数', 1);
+                return json(trans('general.illegal-parameters'), 1);
                 break;
         }
 
@@ -144,13 +144,13 @@ class UserController extends Controller
 
         if ($result) {
             if ($result->type == "cape")
-                return json('披风可不能设置为头像哦~', 1);
+                return json(trans('user.profile.avatar.wrong-type'), 1);
 
             if ($this->user->setAvatar($request->input('tid'))) {
-                return json('设置成功！', 0);
+                return json(trans('user.profile.avatar.success'), 0);
             }
         } else {
-            return json('材质不存在。', 1);
+            return json(trans('user.profile.avatar.non-existent'), 1);
         }
     }
 
diff --git a/app/Http/Middleware/CheckPlayerExistMiddleware.php b/app/Http/Middleware/CheckPlayerExistMiddleware.php
index 83a58dce..a4191277 100644
--- a/app/Http/Middleware/CheckPlayerExistMiddleware.php
+++ b/app/Http/Middleware/CheckPlayerExistMiddleware.php
@@ -21,7 +21,7 @@ class CheckPlayerExistMiddleware
         Event::fire(new CheckPlayerExists($player_name));
 
         if (PlayerModel::where('player_name', $player_name)->get()->isEmpty()) {
-            abort(404, '角色不存在');
+            abort(404, trans('general.unexistent-player'));
         }
 
         return $next($request);
diff --git a/app/Http/Middleware/EncryptCookies.php b/app/Http/Middleware/EncryptCookies.php
index e908ed83..bc218a06 100644
--- a/app/Http/Middleware/EncryptCookies.php
+++ b/app/Http/Middleware/EncryptCookies.php
@@ -14,7 +14,7 @@ class EncryptCookies extends BaseEncrypter
      * @var array
      */
     protected $except = [
-        //
+        'locale'
     ];
 
     public function handle($request, Closure $next)
diff --git a/app/Http/Middleware/RedirectIfAuthenticated.php b/app/Http/Middleware/RedirectIfAuthenticated.php
index f6b87553..da9ec675 100644
--- a/app/Http/Middleware/RedirectIfAuthenticated.php
+++ b/app/Http/Middleware/RedirectIfAuthenticated.php
@@ -11,7 +11,7 @@ class RedirectIfAuthenticated
     {
         if (session()->has('uid')) {
             if (session('token') != (new User(session('uid')))->getToken()) {
-                Session::put('msg', '无效的 token，请重新登录~');
+                Session::put('msg', trans('auth.check.token'));
             } else {
                 return redirect('user');
             }
diff --git a/app/Models/User.php b/app/Models/User.php
index 3fdf3789..16b40413 100644
--- a/app/Models/User.php
+++ b/app/Models/User.php
@@ -118,7 +118,7 @@ class User
     public function getNickName()
     {
         if (!$this->is_registered) {
-            return "不存在的用户";
+            return trans('general.unexistent-user');
         } else {
             return ($this->model->nickname == "") ? $this->email : $this->model->nickname;
         }
@@ -174,9 +174,9 @@ class User
         return $this->storage_used;
     }
 
-    public function sign()
+    public function checkIn()
     {
-        if ($this->canSign()) {
+        if ($this->canCheckIn()) {
             $sign_score = explode(',', Option::get('sign_score'));
             $aquired_score = rand($sign_score[0], $sign_score[1]);
             $this->setScore($aquired_score, 'plus');
@@ -188,7 +188,7 @@ class User
         }
     }
 
-    public function canSign($return_remaining_time = false)
+    public function canCheckIn($return_remaining_time = false)
     {
         // convert to timestamp
         $last_sign_timestamp     = strtotime($this->getLastSignTime());
diff --git a/resources/lang/en/general.yml b/resources/lang/en/general.yml
index 1cb6921c..e6c6e76b 100644
--- a/resources/lang/en/general.yml
+++ b/resources/lang/en/general.yml
@@ -36,3 +36,11 @@ submit: Submit
 
 notice: Notice
 switch-2d-preview: Switch to 2D Preview
+
+illegal-parameters: Illegal parameters.
+
+private: Private
+public: Public
+
+unexistent-user: Un-existent user
+unexistent-player: Un-existent player.
diff --git a/resources/lang/en/locale.js b/resources/lang/en/locale.js
index e16644f1..883c7d34 100644
--- a/resources/lang/en/locale.js
+++ b/resources/lang/en/locale.js
@@ -1,5 +1,5 @@
 /*!
- * Blessing Skin English Translations
+ * Blessing Skin Chinese Translations
  *
  * @see https://github.com/printempw/blessing-skin-server
  * @author printempw <h@prinzeugen.net>
@@ -12,12 +12,15 @@
 
     $.locales['zh-CN'] = {
         auth: {
+            // Login
             emptyIdentification: 'Empty email/player name.',
             emptyPassword: 'Password is required.',
             emptyCaptcha: 'Empty password.',
             login: 'Log In',
             loggingIn: 'Logging In',
             tooManyFails: 'You fails too many times! Please enter the CAPTCHA.',
+
+            // Register
             emptyEmail: 'Empty email address.',
             invalidEmail: 'Invalid format of email address.',
             invalidPassword: 'Invalid password. The length of password should between 8 and 16.',
@@ -26,56 +29,70 @@
             emptyNickname: 'Empty nickname.',
             register: 'Register',
             registering: 'Registering',
+
+            // Reset Password
             send: 'Send',
             sending: 'Sending',
             reset: 'Reset',
             resetting: 'Resetting'
         },
         skinlib: {
-            setSkinName: 'Please name your skin~',
-            removeFromCloset: 'Remove from closet.',
-            addToCloset: 'Add to closet.',
-            encodingError: 'Error: Encoding of this picture is incorrect.',
-            formatError: 'Error: Format of skin file must be PNG.',
-            chooseTextureType: 'Please choose type of texture.',
-            noUploadFile: 'You have not uploaded any file.',
-            setTextureName: 'Please name your texture.',
-            choosePNG: 'Please choose PNG picture file.',
+            // Like
+            addToCloset: 'Add to closet',
+            removeFromCloset: 'Remove from closet',
+            setItemName: 'Set a name for this texture',
+            emptyItemName: 'Empty texture name.',
+
+            // Rename
+            setNewTextureName: 'Please enter the new texture name:',
+            emptyNewTextureName: 'Empty new texture name.',
+
+            // Upload
+            emptyTextureName: 'Empty texture name.',
+            emptyTextureType: 'Please select a type for this texture.',
+            emptyUploadFile: 'You have not uploaded any file.',
+            encodingError: 'Error: Encoding of this file is not accepted.',
+            fileExtError: 'Error: Textures should be PNG files.',
+            upload: 'Upload',
             uploading: 'Uploading',
             redirecting: 'Redirecting...',
-            confirmUpload: 'Confirm uploading',
-            inputTextureName: 'Please input new name of texture.',
-            warningPublic: 'Are you sure to make this texture public?',
-            setPrivate: 'Make it private',
-            setPublic: 'Make it public',
-            warningDelete: 'Are you sure to delete this texture? Scores will be returned.'
+
+            // Change Privacy
+            setAsPrivate: 'Set as private',
+            setAsPublic: 'Set as public',
+            setPublicNotice: 'Sure to set this as public texture?',
+
+            deleteNotice: 'Are you sure to delete this texture? Scores will be returned.'
         },
         user: {
+            checkinRemainTime: 'Available after :time hours',
+
+            // Closet
             switch2dPreview: 'Switch to 2D Preview',
             switch3dPreview: 'Switch to 3D Preview',
-            removeFromCloset: 'Sure to remove this from your closet?',
-            setAvatar: 'Sure to set this as your avatar?',
-            setAvatarNotice: 'The head segment of skin will bu used.',
-            noSelectedPlayer: 'No player is selected.',
-            noSelectedTexture: 'No texture is selected.',
+            removeFromClosetNotice: 'Sure to remove this texture from your closet?',
+            emptySelectedPlayer: 'No player is selected.',
+            emptySelectedTexture: 'No texture is selected.',
+
+            // Player
             changePlayerName: 'Please enter the player name:',
-            playerNameRule: 'The player name may only contain letters, numbers, and dashes. Chinese characters supporting is depended on option of this site.',
+            playerNameRule: 'The player name should only contain letters, numbers, and dashes.',
             emptyPlayerName: 'Empty player name.',
             clearTexture: 'Sure to clear the skins & cape of this player?',
             deletePlayer: 'Sure to delete this player?',
             deletePlayerNotice: 'It\'s permanent. No backups.',
+
+            // Profile
+            setAvatar: 'Sure to set this as your avatar?',
+            setAvatarNotice: 'The head segment of skin will bu used.',
             emptyNewNickName: 'Empty new nickname.',
             changeNickName: 'SUre to set your nickname to :new_nickname?',
             emptyPassword: 'Original password is required.',
             emptyNewPassword: 'Empty new password.',
             emptyNewEmail: 'Empty new email address.',
             changeEmail: 'Sure to change your email address to :new_email?',
-            emptyDeletePassword: 'Please enter the current password:',
-            signRemainTime: 'Can sign after :time hours'
+            emptyDeletePassword: 'Please enter the current password:'
         },
-        utils: {
-            fatalError: 'Fatal Error (Please contact author.)'
-        }
         config: {
             csl13_1Upper: 'v13.1 and upper (recommended)',
             csl13_1Lower: 'lower than v13.1',
@@ -83,6 +100,37 @@
             usm1_2To1_3:  'v1.2 to v1.3',
             usm1_2Lower:  'lower than v1.2',
         },
+        admin: {
+            // Change User Profile
+            newUserEmail: 'Please enter the new email:',
+            newUserNickname: 'Please enter the new nickname:',
+            newUserPassword: 'Please enter the new password:',
+            deleteUserNotice: 'Are you sure to delete this user? It\' permanent.',
+            changePlayerOwner: 'Please enter the id of user which this player should be transferred to:',
+            deletePlayerNotice: 'Are you sure to delete this player? It\' permanent.',
+
+            // Status
+            banned: 'Banned',
+            normal: 'Normal',
+            admin:  'Admin',
+
+            // Operations
+            ban: 'Ban',
+            unban: 'Unban',
+            setAdmin: 'Set as admin',
+            unsetAdmin: 'Remove admin',
+
+            // Change Player Texture
+            textureType: 'Texture Type',
+            skin: 'Skin (:model Model)',
+            cape: 'Cape',
+            pid: 'Texture ID',
+            pidNotice: 'Please enter the tid of texture',
+            changePlayerTexture: 'Change textures of :player'
+        },
+        utils: {
+            fatalError: 'Fatal Error (Please contact the author)'
+        },
         general: {
             confirmLogout: 'Sure to log out?',
             confirm: 'OK',
diff --git a/resources/lang/en/skinlib.yml b/resources/lang/en/skinlib.yml
index f5dcb349..de8decfd 100644
--- a/resources/lang/en/skinlib.yml
+++ b/resources/lang/en/skinlib.yml
@@ -47,9 +47,13 @@ show:
   comment: Comments
   no-comment: We have not enabled comment service.
 
+  deleted: The requested texture file is already deleted.
+  contact-admin: Please contact the admin to delete this texture.
+  private: The requested texture is private and is only visible to uploader and admins.
+
 upload:
   title: Upload texture
-  button: Confirm uploading
+  button: Upload
   upload: Upload
   texture-name: Texture name
   name-message: Length of texture name should be less than 32 bytes and it cannot contain invaild character.
@@ -58,4 +62,23 @@ upload:
   storage-message: Private texture will cost more scores. Every KB costs  :score scores
   privacy-message: Others cannot find it in skin library.
   set-private: Make it private.
-  
\ No newline at end of file
+
+  type-error: Incorrect mime type of uploaded file.
+  invalid-size: Invalid :type file (Width :width, Height :height)
+
+  lack-score: You don't have enough score to upload this texture.
+  repeated: The texture is already uploaded by someone else. You can add it to your closet directly.
+  success: Texture :name was uploaded successfully.
+
+delete:
+  success: The texture was deleted successfully.
+
+privacy:
+  success: The texture was setted to :privacy successfully.
+
+rename:
+  success: The texture was renamed to :name successfully.
+
+no-permission: You aren't the uploader of this texture.
+non-existent: Non-existent texture.
+
diff --git a/resources/lang/en/user.yml b/resources/lang/en/user.yml
index b2bfdd5b..26b45319 100644
--- a/resources/lang/en/user.yml
+++ b/resources/lang/en/user.yml
@@ -5,9 +5,11 @@ used:
 
 cur-score: Current Score
 score-notice: Click the score to show introduction.
-sign: Sign In
-last-sign: Last signed in at :time
-remain-time: Can sign in after :time hours
+checkin: Check In
+checkin-success: Checked in successfully. You got :score scores~
+cant-checkin-until: You can only check in after $time hours
+last-checkin: Last checked in at :time
+checkin-remain-time: Available after :time hours
 announcement: Announcement
 
 score-intro:
@@ -40,6 +42,14 @@ closet:
     empty: It seems that you own no player...
     add: Add new player
 
+  add:
+    success: Added :name to closet successfully~
+    repeated: You have already added this texture.
+
+  remove:
+    success: Texture was removed from closet successfully.
+    non-existent: The texture does not exist in your closet.
+
 player:
   player-name: Player Name
   preference: Preference
@@ -63,9 +73,34 @@ player:
   pname-rule: Could only contain letters, numbers and dashes.
   pname-rule-chinese: Could only contain chinese characters, letters, numbers and dashes.
 
+  add:
+    repeated: The player name is already registered.
+    lack-score: You don't have enough score to add a player.
+    success: Player :name was added successfully.
+
+  delete:
+    success: Player :name was deleted successfully.
+
+  rename:
+    repeated: This player name is occupied. Please choose another one.
+    success: Player :old was renamed to :new
+
+  set:
+    success: The texture was applied to player :name successfully.
+
+  clear:
+    success: The textures of player :name was resetted successfully.
+
+  preference:
+    success: The preference of player :name was updated to :preference
+
 profile:
-  change-avatar: Change Avatar?
-  avatar-notice: Click the gear icon「<i class="fa fa-cog"></i>」of any skin in your skinlib, then click 「Set as avatar」. We will cut the head segment of that skin for you.
+  avatar:
+    title: Change Avatar?
+    notice: Click the gear icon「<i class="fa fa-cog"></i>」of any skin in your skinlib, then click 「Set as avatar」. We will cut the head segment of that skin for you.
+    wrong-type: You can't set a cape as avatar
+    non-existent: Non-existent texture
+    success: Avatar setted successfully
 
   password:
     title: Change Password
@@ -73,17 +108,22 @@ profile:
     new: New Password
     confirm: Repeat Password
     button: Change Password
+    wrong-password: Original password is not correct.
+    success: Password updated successfully, please log in again.
 
   nickname:
     title: Change Nickname
     empty: No nickname is setted now.
     rule: Whatever you like expect special characters
+    success: Nickname is successfully updated to :nickname
 
   email:
     title: Change Email
     new: New Email
     password: Current Password
     button: Change Email
+    wrong-password: Wrong password.
+    success: Email address updated successfully, please log in again.
 
   delete:
     title: Delete Account
@@ -98,6 +138,9 @@ profile:
       We warned you, ok?
     password: Current Password
 
+    wrong-password: Wrong password.
+    success: Your account is deleted successfully.
+
 config:
   mod-requirement: MOD Requirement
   mod-intro: |
diff --git a/resources/lang/zh-CN/general.yml b/resources/lang/zh-CN/general.yml
index e54190e3..fbf0206b 100644
--- a/resources/lang/zh-CN/general.yml
+++ b/resources/lang/zh-CN/general.yml
@@ -36,3 +36,11 @@ submit: 提交
 
 notice: 提示
 switch-2d-preview: 切换 2D 预览
+
+illegal-parameters: 非法参数
+
+private: 私密
+public: 公开
+
+unexistent-user: 不存在的用户
+unexistent-player: 角色不存在
diff --git a/resources/lang/zh-CN/locale.js b/resources/lang/zh-CN/locale.js
index b1282af0..d58d4f58 100644
--- a/resources/lang/zh-CN/locale.js
+++ b/resources/lang/zh-CN/locale.js
@@ -12,12 +12,15 @@
 
     $.locales['zh-CN'] = {
         auth: {
+            // Login
             emptyIdentification: '你还没有填写邮箱/角色名哦',
             emptyPassword: '密码要好好填哦',
             emptyCaptcha: '你还没有填写验证码哦',
             login: '登录',
             loggingIn: '登录中',
             tooManyFails: '你尝试的次数太多啦，请输入验证码',
+
+            // Register
             emptyEmail: '你还没有填写邮箱哦',
             invalidEmail: '邮箱格式不正确！',
             invalidPassword: '无效的密码。密码长度应该大于 8 并小于 16。',
@@ -26,56 +29,70 @@
             emptyNickname: '你还没有填写昵称哦',
             register: '注册',
             registering: '注册中',
+
+            // Reset Password
             send: '发送',
             sending: '发送中',
             reset: '重置',
             resetting: '重置中'
         },
         skinlib: {
-            setSkinName: '给你的皮肤起个名字吧~',
-            removeFromCloset: '从衣柜中移除',
+            // Like
             addToCloset: '添加至衣柜',
+            removeFromCloset: '从衣柜中移除',
+            setItemName: '给你的皮肤起个名字吧~',
+            emptyItemName: '你还没有填写要收藏的材质名称啊',
+
+            // Rename
+            setNewTextureName: '请输入新的材质名称：',
+            emptyNewTextureName: '你还没有输入新名称啊',
+
+            // Upload
+            emptyTextureName: '给你的材质起个名字吧',
+            emptyTextureType: '请选择材质的类型',
+            emptyUploadFile: '你还没有上传任何文件哦',
             encodingError: '错误：这张图片编码不对哦',
-            formatError: '错误：皮肤文件必须为 PNG 格式',
-            chooseTextureType: '请选择材质的类型',
-            noUploadFile: '你还没有上传任何文件哦',
-            setTextureName: '给你的材质起个名字吧',
-            choosePNG: '请选择 PNG 格式的图片',
+            fileExtError: '错误：皮肤文件必须为 PNG 格式',
+            upload: '确认上传',
             uploading: '上传中',
             redirecting: '正在跳转...',
-            confirmUpload: '确认上传',
-            inputTextureName: '请输入新的材质名称：',
-            warningPublic: '要将此材质设置为公开吗？',
-            setPrivate: '设为隐私',
-            setPublic: '设为公开',
-            warningDelete: '真的要删除此材质吗？积分将会被返还'
+
+            // Change Privacy
+            setAsPrivate: '设为隐私',
+            setAsPublic: '设为公开',
+            setPublicNotice: '要将此材质设置为公开吗？',
+
+            deleteNotice: '真的要删除此材质吗？积分将会被返还'
         },
         user: {
+            checkinRemainTime: ':time 小时后可签到',
+
+            // Closet
             switch2dPreview: '切换 2D 预览',
             switch3dPreview: '切换 3D 预览',
-            removeFromCloset: '确定要从衣柜中移除此材质吗？',
-            setAvatar: '确定要将此材质设置为用户头像吗？',
-            setAvatarNotice: '将会自动截取皮肤头部',
-            noSelectedPlayer: '你还没有选择角色哦',
-            noSelectedTexture: '你还没有选择要应用的材质哦',
+            removeFromClosetNotice: '确定要从衣柜中移除此材质吗？',
+            emptySelectedPlayer: '你还没有选择角色哦',
+            emptySelectedTexture: '你还没有选择要应用的材质哦',
+
+            // Player
             changePlayerName: '请输入角色名：',
             playerNameRule: '允许数字、字母以及下划线，是否支持中文角色名请参考本站设置',
             emptyPlayerName: '你还没有填写名称哦',
             clearTexture: '确定要重置该用户的皮肤/披风吗？',
             deletePlayer: '真的要删除该玩家吗？',
             deletePlayerNotice: '这将是永久性的删除',
+
+            // Profile
+            setAvatar: '确定要将此材质设置为用户头像吗？',
+            setAvatarNotice: '将会自动截取皮肤头部',
             emptyNewNickName: '你还没有填写新昵称啊',
             changeNickName: '确定要将昵称设置为 :new_nickname 吗？',
             emptyPassword: '原密码不能为空',
             emptyNewPassword: '新密码要好好填哦',
             emptyNewEmail: '你还没有填写新邮箱啊',
             changeEmail: '确定要将用户邮箱更改为 :new_email 吗？',
-            emptyDeletePassword: '请先输入当前用户密码',
-            signRemainTime: ':time 小时后可签到'
+            emptyDeletePassword: '请先输入当前用户密码'
         },
-        utils: {
-            fatalError: '严重错误（请联系作者）'
-        }
         config: {
             csl13_1Upper: '13.1 版及以上（推荐）',
             csl13_1Lower: '13.1 版以下',
@@ -83,10 +100,41 @@
             usm1_2To1_3:  '1.2 及 1.3 版',
             usm1_2Lower:  '1.2 版以下',
         },
+        admin: {
+            // Change User Profile
+            newUserEmail: '请输入新邮箱：',
+            newUserNickname: '请输入新昵称：',
+            newUserPassword: '请输入新密码：',
+            deleteUserNotice: '真的要删除此用户吗？此操作不可恢复',
+            changePlayerOwner: '请输入此角色要让渡至的用户 UID：',
+            deletePlayerNotice: '真的要删除此角色吗？此操作不可恢复',
+
+            // Status
+            banned: '封禁',
+            normal: '正常',
+            admin:  '管理员',
+
+            // Operations
+            ban: '封禁',
+            unban: '解封',
+            setAdmin: '设为管理员',
+            unsetAdmin: '解除管理员',
+
+            // Change Player Texture
+            textureType: '材质类型',
+            skin: '皮肤（:model 模型）',
+            cape: '披风',
+            pid: '材质 ID',
+            pidNotice: '输入要更换的材质的 TID',
+            changePlayerTexture: '更换角色 :player 的材质'
+        },
+        utils: {
+            fatalError: '严重错误（请联系作者）'
+        },
         general: {
             confirmLogout: '确定要登出吗？',
             confirm: '确定',
-            cancel: '取消'
+            cancel:  '取消'
         }
     };
 })(window.jQuery);
diff --git a/resources/lang/zh-CN/skinlib.yml b/resources/lang/zh-CN/skinlib.yml
index df990184..df96c2be 100644
--- a/resources/lang/zh-CN/skinlib.yml
+++ b/resources/lang/zh-CN/skinlib.yml
@@ -47,6 +47,10 @@ show:
   comment: 评论区
   no-comment: 本站未开启评论服务
 
+  deleted: 请求的材质文件已经被删除
+  contact-admin: 请联系管理员删除该条目
+  private: 请求的材质已经设为隐私，仅上传者和管理员可查看
+
 upload:
   title: 上传材质
   button: 确认上传
@@ -58,4 +62,22 @@ upload:
   storage-message: 私密材质将会消耗更多的积分：每 KB 存储空间  :score 积分
   privacy-message: 其他人将不会在皮肤库中看到此材质
   set-private: 设置为私密材质
-  
\ No newline at end of file
+
+  type-error: 文件格式不对哦
+  invalid-size: 不是有效的 :type 文件（宽 :width，高 :height）
+
+  lack-score: 积分不够啦
+  repeated: 已经有人上传过这个材质了，直接添加到衣柜使用吧~
+  success: 材质 :name 上传成功
+
+delete:
+  success: 材质已被成功删除
+
+privacy:
+  success: 材质已被设为 :privacy
+
+rename:
+  success: 材质名称已被成功设置为 :name
+
+no-permission: 你不是这个材质的上传者哦
+non-existent: 材质不存在
diff --git a/resources/lang/zh-CN/user.yml b/resources/lang/zh-CN/user.yml
index bee84381..1c1739cd 100644
--- a/resources/lang/zh-CN/user.yml
+++ b/resources/lang/zh-CN/user.yml
@@ -5,9 +5,11 @@ used:
 
 cur-score: 当前积分
 score-notice: 点击积分查看说明
-sign: 每日签到
-last-sign: 上次签到于 :time
-remain-time: :time 小时后可签到
+checkin: 每日签到
+checkin-success: 签到成功，获得了 :score 积分~
+cant-checkin-until: $time 小时后才能再次签到哦~
+last-checkin: 上次签到于 :time
+checkin-remain-time: :time 小时后可签到
 announcement: 公告
 
 score-intro:
@@ -46,6 +48,14 @@ closet:
     empty: 你好像还没有添加任何角色哦
     add: 添加角色
 
+  add:
+    success: 材质 :name 收藏成功~
+    repeated: 你已经收藏过这个材质啦
+
+  remove:
+    success: 材质已从衣柜中移除
+    non-existent: 衣柜中不存在此材质
+
 player:
   player-name: 角色名称
   preference: 优先模型
@@ -69,9 +79,34 @@ player:
   pname-rule: 只能包含数字、字母以及下划线
   pname-rule-chinese: 可使用汉字，字母数字以及下划线
 
+  add:
+    repeated: 该角色名已经被其他人注册掉啦
+    lack-score: 积分不够添加角色啦
+    success: 成功添加了角色 :name
+
+  delete:
+    success: 角色 :name 已被删除
+
+  rename:
+    repeated: 此角色名已被他人使用，换一个吧~
+    success: 角色 :old 已更名为 :new
+
+  set:
+    success: 材质已成功应用至角色 :name
+
+  clear:
+    success: 角色 :name 的材质已被成功重置
+
+  preference:
+    success: 角色 :name 的优先模型已更改至 :preference
+
 profile:
-  change-avatar: 更改头像？
-  avatar-notice: 请在衣柜中任意皮肤的右下角「<i class="fa fa-cog"></i>」处选择「设为头像」，将会自动截取该皮肤的头部作为头像哦~
+  avatar:
+    title: 更改头像？
+    notice: 请在衣柜中任意皮肤的右下角「<i class="fa fa-cog"></i>」处选择「设为头像」，将会自动截取该皮肤的头部作为头像哦~
+    wrong-type: 披风可不能设置为头像哦~
+    non-existent: 材质不存在。
+    success: 设置成功！
 
   password:
     title: 更改密码
@@ -79,17 +114,22 @@ profile:
     new: 新密码
     confirm: 确认密码
     button: 修改密码
+    wrong-password: 原密码错误
+    success: 密码修改成功，请重新登录
 
   nickname:
     title: 更改昵称
     empty: 当前未设置昵称，
     rule: 可使用除一些特殊符号外的任意字符
+    success: 昵称已成功设置为 :nickname
 
   email:
     title: 更改邮箱
     new: 新邮箱
     password: 当前密码
     button: 修改邮箱
+    wrong-password: 密码错误
+    success: 邮箱修改成功，请重新登录
 
   delete:
     title: 删除账号
@@ -105,6 +145,9 @@ profile:
       我们警告过你了，确定要这样做吗？
     password: 当前密码
 
+    wrong-password: 密码错误
+    success: 账号已被成功删除
+
 config:
   mod-requirement: MOD 需求
   mod-intro: |
diff --git a/resources/src/js/admin.js b/resources/src/js/admin.js
index 704e0d9f..340dea99 100644
--- a/resources/src/js/admin.js
+++ b/resources/src/js/admin.js
@@ -2,7 +2,7 @@
  * @Author: printempw
  * @Date:   2016-07-22 14:02:44
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-09-10 17:04:04
+ * @Last Modified time: 2016-09-24 19:58:24
  */
 
 'use strict';
@@ -50,7 +50,7 @@ $('#page-select').on('change', function() {
 });
 
 function changeUserEmail(uid) {
-    var email = prompt("请输入新邮箱：");
+    var email = prompt(trans('admin.newUserEmail'));
 
     if (!email) return;
 
@@ -72,7 +72,7 @@ function changeUserEmail(uid) {
 }
 
 function changeUserNickName(uid) {
-    var nickname = prompt("请输入新昵称：");
+    var nickname = prompt(trans('admin.newUserNickname'));
 
     if (!nickname) return;
 
@@ -94,7 +94,7 @@ function changeUserNickName(uid) {
 }
 
 function changeUserPwd(uid) {
-    var password = prompt("请输入新密码：");
+    var password = prompt(trans('admin.newUserPassword'));
 
     if (!password) return;
 
@@ -141,10 +141,10 @@ function changeBanStatus(uid) {
             if (json.errno == 0) {
                 var object = $('#'+uid).find('a#ban');
                 var dom = '<a id="ban" href="javascript:changeBanStatus('+uid+');">' +
-                            (object.text() == '封禁' ? '解封' : '封禁') + '</a>';
+                            (object.text() == trans('admin.ban') ? trans('admin.unban') : trans('admin.ban')) + '</a>';
                 object.html(dom);
 
-                $('#'+uid).find('#permission').text(json.permission == '-1' ? '封禁' : '正常');
+                $('#'+uid).find('#permission').text(json.permission == '-1' ? trans('admin.banned') : trans('admin.normal'));
                 toastr.success(json.msg);
             } else {
                 toastr.warning(json.msg);
@@ -164,10 +164,10 @@ function changeAdminStatus(uid) {
             if (json.errno == 0) {
                 var object = $('#'+uid).find('a#admin');
                 var dom = '<a href="javascript:changeAdminStatus('+uid+');">' +
-                            (object.text() == '设为管理员' ? '解除管理员' : '设为管理员') + '</a>';
+                            (object.text() == trans('admin.setAdmin') ? trans('admin.unsetAdmin') : trans('admin.setAdmin')) + '</a>';
                 object.html(dom);
 
-                $('#'+uid).find('#permission').text(json.permission == '1' ? '管理员' : '正常');
+                $('#'+uid).find('#permission').text(json.permission == '1' ? trans('admin.admin') : trans('admin.normal'));
                 toastr.success(json.msg);
             } else {
                 toastr.warning(json.msg);
@@ -178,7 +178,7 @@ function changeAdminStatus(uid) {
 }
 
 function deleteUserAccount(uid) {
-    if (!window.confirm('真的要删除此用户吗？此操作不可恢复')) return;
+    if (!window.confirm(trans('admin.deleteUserNotice'))) return;
 
     $.ajax({
         type: "POST",
@@ -223,20 +223,20 @@ $('body').on('change', '#preference', function() {
 
 function changeTexture(pid) {
     var dom   = '<div class="form-group">'+
-                    '<label for="model">材质类型</label>'+
+                    '<label for="model">'+trans('admin.textureType')+'</label>'+
                     '<select class="form-control" id="model">'+
-                        '<option value="steve">皮肤（Steve 模型）</option>'+
-                        '<option value="alex">皮肤（Alex 模型）</option>'+
-                        '<option value="cape">披风</option>'+
+                        '<option value="steve">'+trans('admin.skin', {'model': 'Steve'})+'</option>'+
+                        '<option value="alex">'+trans('admin.skin', {'model': 'Alex'})+'</option>'+
+                        '<option value="cape">'+trans('admin.cape')+'</option>'+
                     '</select>'+
                 '</div>'+
                 '<div class="form-group">'+
-                    '<label for="tid">材质 ID</label>'+
-                    '<input id="tid" class="form-control" type="text" placeholder="输入要更换的材质的 TID">'+
+                    '<label for="tid">'+trans('admin.pid')+'</label>'+
+                    '<input id="tid" class="form-control" type="text" placeholder="'+trans('admin.pidNotice')+'">'+
                 '</div>';
 
     var player_name = $('#'+pid).find('#player-name').text();
-    showModal(dom, '更换角色 '+player_name+' 的材质', 'default', 'ajaxChangeTexture('+pid+')');
+    showModal(dom, trans('admin.changePlayerTexture', {'player': player_name}), 'default', 'ajaxChangeTexture('+pid+')');
     return;
 }
 
@@ -269,7 +269,7 @@ function ajaxChangeTexture(pid) {
 }
 
 function changeOwner(pid) {
-    var uid = prompt("请输入此角色要让渡至的用户 UID：");
+    var uid = prompt(trans('admin.changePlayerOwner'));
 
     if (!uid) return;
 
@@ -291,7 +291,7 @@ function changeOwner(pid) {
 }
 
 function deletePlayer(pid) {
-    if (!window.confirm('真的要删除此角色吗？此操作不可恢复')) return;
+    if (!window.confirm(trans('admin.deletePlayerNotice'))) return;
 
     $.ajax({
         type: "POST",
diff --git a/resources/src/js/skinlib.js b/resources/src/js/skinlib.js
index c283a7cb..d57fe04b 100644
--- a/resources/src/js/skinlib.js
+++ b/resources/src/js/skinlib.js
@@ -2,7 +2,7 @@
  * @Author: printempw
  * @Date:   2016-07-19 10:46:38
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-09-10 21:36:10
+ * @Last Modified time: 2016-09-24 20:09:15
  */
 
 'use strict';
@@ -40,7 +40,7 @@ $('#type-skin').on('ifToggled', function() {
 function addToCloset(tid) {
     $.getJSON(base_url + '/skinlib/info/'+tid, function(json) {
         swal({
-            title: trans('skinlib.setSkinName'),
+            title: trans('skinlib.setItemName'),
             inputValue: json.name,
             input: 'text',
             showCancelButton: true,
@@ -49,7 +49,7 @@ function addToCloset(tid) {
                     if (value) {
                         resolve();
                     } else {
-                        reject(trans('user.emptyPlayerName'));
+                        reject(trans('skinlib.emptyItemName'));
                     }
                 });
             }
@@ -176,7 +176,7 @@ function handleFiles(files, type) {
                         $('#name').val(file.name.split('.png')[0])
                 };
                 img.onerror = function() {
-                    toastr.warning(trans('skinlib.encodingError'));
+                    toastr.warning(trans('skinlib.fileExtError'));
                 };
                 img.src = this.result;
             };
@@ -198,18 +198,18 @@ function upload() {
     } else if ($('#type-cape').prop('checked')) {
         form_data.append('type', 'cape');
     } else {
-        toastr.info(trans('skinlib.chooseTextureType')); return;
+        toastr.info(trans('skinlib.emptyTextureType')); return;
     }
 
     // quick fix for browsers which don't support FormData.get()
     if ($('#file').prop('files')[0] == 'undefined') {
-        toastr.info(trans('skinlib.noUploadFile'));
+        toastr.info(trans('skinlib.emptyUploadFile'));
         $('#file').focus();
     } else if ($('#name').val() == "") {
-        toastr.info(trans('skinlib.setTextureName'));
+        toastr.info(trans('skinlib.emptyTextureName'));
         $('#name').focus();
     } else if ($('#file').prop('files')[0].type !== "image/png") {
-        toastr.warning(trans('skinlib.choosePNG'));
+        toastr.warning(trans('skinlib.fileExtError'));
         $('#file').focus();
     } else {
         $.ajax({
@@ -251,7 +251,7 @@ function upload() {
 
 function changeTextureName(tid) {
     swal({
-        text: trans('skinlib.inputTextureName'),
+        text: trans('skinlib.setNewTextureName'),
         input: 'text',
         showCancelButton: true,
         inputValidator: function(value) {
@@ -259,7 +259,7 @@ function changeTextureName(tid) {
                 if (value) {
                     resolve();
                 } else {
-                    reject(trans('user.emptyPlayerName'));
+                    reject(trans('skinlib.emptyNewTextureName'));
                 }
             });
         }
@@ -283,14 +283,14 @@ function changeTextureName(tid) {
 }
 
 $('.private-label').click(function() {
-    var object = $(this);
+    var self = $(this);
     swal({
-        text: trans('skinlib.warningPublic'),
+        text: trans('skinlib.setPublicNotice'),
         type: 'warning',
         showCancelButton: true
     }).then(function() {
-        changePrivacy(object.attr('tid'));
-        object.remove();
+        changePrivacy(self.attr('tid'));
+        self.remove();
     });
 });
 
@@ -303,9 +303,9 @@ function changePrivacy(tid) {
             if (json.errno == 0) {
                 toastr.success(json.msg);
                 if (json.public == "0")
-                    $('a:contains("' + trans('skinlib.setPrivate') + '")').html(trans('skinlib.setPublic'));
+                    $('a:contains("' + trans('skinlib.setAsPrivate') + '")').html(trans('skinlib.setAsPublic'));
                 else
-                    $('a:contains("' + trans('skinlib.setPublic') + '")').html(trans('skinlib.setPrivate'));
+                    $('a:contains("' + trans('skinlib.setAsPublic') + '")').html(trans('skinlib.setAsPrivate'));
             } else {
                 toastr.warning(json.msg);
             }
@@ -316,7 +316,7 @@ function changePrivacy(tid) {
 
 function deleteTexture(tid) {
     swal({
-        text: trans('skinlib.warningDelete'),
+        text: trans('skinlib.deleteNotice'),
         type: 'warning',
         showCancelButton: true
     }).then(function() {
diff --git a/resources/src/js/user.js b/resources/src/js/user.js
index 657c7238..9abd79ca 100644
--- a/resources/src/js/user.js
+++ b/resources/src/js/user.js
@@ -2,7 +2,7 @@
  * @Author: printempw
  * @Date:   2016-07-16 10:02:24
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-09-15 21:26:27
+ * @Last Modified time: 2016-09-24 21:02:13
  */
 
 'use strict';
@@ -147,7 +147,7 @@ $('body').on('click', '.item', function() {
 
 function removeFromCloset(tid) {
     swal({
-        text: trans('user.removeFromCloset'),
+        text: trans('user.removeFromClosetNotice'),
         type: 'warning',
         showCancelButton: true
     }).then(function() {
@@ -221,9 +221,9 @@ function setTexture() {
     var tid = $('.item-selected').attr('tid');
 
     if (!pid) {
-        toastr.info(trans('user.noSelectedPlayer'));
+        toastr.info(trans('user.emptySelectedPlayer'));
     } else if (!tid) {
-        toastr.info(trans('user.noSelectedTexture'));
+        toastr.info(trans('user.emptySelectedTexture'));
     } else {
         $.ajax({
             type: "POST",
@@ -397,7 +397,7 @@ function changeNickName() {
     if (!new_nickname) {
         swal({
             type: 'error',
-            html: trans('user.emptyNewNickname')
+            html: trans('user.emptyNewNickName')
         });
         return;
     }
@@ -572,10 +572,10 @@ function deleteAccount() {
     });
 }
 
-function sign() {
+function checkin() {
     $.ajax({
         type: "POST",
-        url: "./user/sign",
+        url: "./user/checkin",
         dataType: "json",
         success: function(json) {
             if (json.errno == 0) {
@@ -584,8 +584,8 @@ function sign() {
                     html: json.msg
                 }).then(function() {
                     $('#score').html(json.score);
-                    var dom = '<i class="fa fa-calendar-check-o"></i> &nbsp;' + trans('user.signRemainTime', { time: json.remaining_time });
-                    $('#sign-button').attr('disabled', 'disabled').html(dom);
+                    var dom = '<i class="fa fa-calendar-check-o"></i> &nbsp;' + trans('user.checkinRemainTime', { time: String(json.remaining_time) });
+                    $('#checkin-button').attr('disabled', 'disabled').html(dom);
                 });
             } else {
                 toastr.warning(json.msg);
diff --git a/resources/src/js/utils.js b/resources/src/js/utils.js
index 263590f0..d453b766 100644
--- a/resources/src/js/utils.js
+++ b/resources/src/js/utils.js
@@ -2,13 +2,19 @@
  * @Author: printempw
  * @Date:   2016-07-16 09:02:32
  * @Last Modified by:   printempw
- * @Last Modified time: 2016-09-15 21:48:24
+ * @Last Modified time: 2016-09-24 18:10:03
  */
 
 $.locales = {};
 
 var locale = {};
 
+/**
+ * Check if given value is empty.
+ *
+ * @param  {any}  obj
+ * @return {Boolean}
+ */
 function isEmpty(obj) {
 
     // null and undefined are "empty"
@@ -34,6 +40,11 @@ function isEmpty(obj) {
     return true;
 }
 
+/**
+ * Load current selected language.
+ *
+ * @return void
+ */
 function loadLocales() {
     for (lang in $.locales) {
         if (!isEmpty($.locales[lang])) {
@@ -42,6 +53,13 @@ function loadLocales() {
     }
 }
 
+/**
+ * Translate according to given key.
+ *
+ * @param  {string} key
+ * @param  {dict}   parameters
+ * @return {string}
+ */
 function trans(key, parameters) {
     if (isEmpty(locale)) {
         loadLocales();
@@ -78,15 +96,33 @@ function showModal(msg, title, type, callback) {
     $(dom).modal();
 }
 
+/**
+ * Show message to div#msg with level
+ *
+ * @param  {string} msg
+ * @param  {string} type
+ * @return {void}
+ */
 function showMsg(msg, type) {
-    type  = type  === undefined ? "info" : type;
+    type = (type === undefined) ? "info" : type;
     $("[id=msg]").removeClass().addClass("callout").addClass('callout-'+type).html(msg);
 }
 
+/**
+ * Show modal if error occured when sending an ajax request.
+ *
+ * @param  {object} json
+ * @return {void}
+ */
 function showAjaxError(json) {
     showModal(json.responseText.replace(/\n/g, '<br />'), trans('utils.fatalError'), 'danger');
 }
 
+/**
+ * Check if current environment is mobile.
+ *
+ * @return {Boolean}
+ */
 function isMobile() {
     if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {
         return true;
@@ -94,6 +130,12 @@ function isMobile() {
     return false;
 }
 
+/**
+ * Get parameters in query string with key.
+ *
+ * @param  {string} key
+ * @return {string}
+ */
 function getQueryString(key) {
     result = location.search.match(new RegExp('[\?\&]'+key+'=([^\&]+)','i'));
 
diff --git a/resources/views/user/index.tpl b/resources/views/user/index.tpl
index 90a2a696..925d6708 100644
--- a/resources/views/user/index.tpl
+++ b/resources/views/user/index.tpl
@@ -73,13 +73,13 @@
                         </div><!-- /.row -->
                     </div><!-- ./box-body -->
                     <div class="box-footer">
-                        @if ($user->canSign())
-                        <button id="sign-button" class="btn btn-primary pull-left" onclick="sign()">
-                            <i class="fa fa-calendar-check-o" aria-hidden="true"></i> &nbsp;{{ trans('user.sign') }}
+                        @if ($user->canCheckIn())
+                        <button id="checkin-button" class="btn btn-primary pull-left" onclick="checkin()">
+                            <i class="fa fa-calendar-check-o" aria-hidden="true"></i> &nbsp;{{ trans('user.checkin') }}
                         </button>
                         @else
-                        <button class="btn btn-primary pull-left" title="{{ trans('user.last-sign', ['time' => $user->getLastSignTime()]) }}" disabled="disabled">
-                            <i class="fa fa-calendar-check-o" aria-hidden="true"></i> &nbsp;{{ trans('user.remain-time', ['time' => $user->canSign(true)]) }}
+                        <button class="btn btn-primary pull-left" title="{{ trans('user.last-checkin', ['time' => $user->getLastSignTime()]) }}" disabled="disabled">
+                            <i class="fa fa-calendar-check-o" aria-hidden="true"></i> &nbsp;{{ trans('user.checkin-remain-time', ['time' => $user->canCheckIn(true)]) }}
                         </button>
                         @endif
                     </div><!-- /.box-footer -->
diff --git a/resources/views/user/profile.tpl b/resources/views/user/profile.tpl
index 3216af8d..4669663f 100644
--- a/resources/views/user/profile.tpl
+++ b/resources/views/user/profile.tpl
@@ -20,10 +20,10 @@
             <div class="col-md-6">
                 <div class="box box-primary">
                     <div class="box-header with-border">
-                        <h3 class="box-title">{{ trans('user.profile.change-avatar') }}</h3>
+                        <h3 class="box-title">{{ trans('user.profile.avatar.title') }}</h3>
                     </div><!-- /.box-header -->
                     <div class="box-body">
-                        {!! trans('user.profile.avatar-notice') !!}
+                        {!! trans('user.profile.avatar.notice') !!}
                     </div><!-- /.box-body -->
                 </div>