根据在灾难恢复站点上保存映像的方式不同，可能还需要恢复备份。
Depending on how you chose to keep your image at the disaster recovery site, you may also need to restore a backup.
在主站点上不需要同时保留这些备份，只需多花一点儿钱通过Internet发送它们。
These backups don't need to be redundant at the primary site and we only pay a little more to send them over the Internet.
搜索引擎会索引你的站点并且在搜索结果中保存自己临时的备份。
Search engines will index your site and keep their own temporary copy of it for use in returning search results.
搜索引擎会索引你的站点并且在搜索结果中保存自己临时的备份。
Search engines will index your site and keep their own temporary copy of it for use in returning search results.
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