许多软件公司明文规定要求用户进行一次副本备份。

Many software companies make an express provision for the user to make one back up copy.

youdao

可以给备份副本和存档的日志分配多少存储空间？

How much storage space can be allocated for backup copies and archived logs?

youdao

为文件创建一个副本或备份是一种不错的做法。

Making a copy or backup of files is considered good practice.

youdao

You really need that because if you have only one copy of something, you don't have a backup; so, you can store the one copy separately.

你真的很需要这项发明,因为要是你只有一份的话，你就没有备份;,这样的话，你就可以将副本单独留存。

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