求翻译、搜索引擎里的翻译全部不要、如题：这个页面请管理员保留一个周，如有删除，整个网站数据清空。
Please reserve this page for one week, if it is deleted, the entire site data will be empty.
用户删除消息或清空垃圾后，必须压缩服务器上的邮件数据库。
After users delete messages or empty the trash, they must compact their mail database on the server.
在这些 AFS 卷上可以进行一些操作，比如数据复制、清空、备份、恢复等。
There are a set of operations which may be performed on these AFS volumes such as replication, dumping of data, backup, restoration, etc.
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