You should make a copy of the disk as a backup.

你应该将磁盘复制一个备份。

《牛津词典》

You should then copy that subdirectory to an area outside the portlet as a backup.

您然后应该将该子目录复制到portlet外部的某个区域，以进行备份。

youdao

Let's make another copy of the DV of our baby as a backup.

咱把宝宝的DV光盘再翻刻备份一下吧。

youdao

Let's make another copy of the DV of our baby as a backup.

咱把宝宝的DV光盘再翻刻备份一下吧。

youdao