backups

Have you kept a backup of this file?

文件备份了吗?

Download and unzip the Scoter ROM backup utility to a folder.

下载附件的文件，并解压到一个文件夹。

She once sang backup for Madonna.

她曾经为麦当娜伴唱。

Bibliotheca Alexandrina maintains the only copy and external backup of the Internet Archive.

并且a原稿恢复实验室.图书馆的建筑学相等地触击。

The hospital has a backup generator in case there is a power failure.

医院有备发电机以防停电。

The CROSSCHECK command synchronizes the logical records of RMAN backups and copies with the files on storage media.

CROSSCHECK命令同步RMAN备份和存储介质上副本的逻辑记录。

We had no computer backup and had to rely on old paper files to reconstruct the records.

我们没有计算机备份,只得靠落后的纸档案重做记录。