add temporary email description

data/web/lang/lang.zh-cn.json

@@ -1164,6 +1164,7 @@
         "created_on": "添加于",
         "daily": "每日",
         "day": "日",
+        "description": "描述",
         "delete_ays": "请确认删除。",
         "direct_aliases": "直接别名",
         "direct_aliases_desc": "垃圾邮件过滤和 TLS 策略会作用于直接别名。",
@@ -1336,4 +1337,4 @@
         "loadingRecords": "加载中...",
         "zeroRecords": "未找到符合条件的记录"
     }
-}
+}