当删除实例时，实例将被停止，并且在临时文件系统中的数据也将被删除且不能恢复，因此，需要把重要的数据保存到其他的存储系统上。

When you delete the instance, the instance is halted and the data in the ephemeral file system is deleted and is not recoverable, so you have to keep important data on other storage systems.

youdao

不能使用它，因为文件已被保存；此处没有UNDO命令，因此，程序员需要恢复备份或重新输入。

You can't, because the file was saved; there is no UNDO here, so the programmer would need to either recover the backup copy or retype it.

youdao

如果我们不能从归档中恢复出可正常使用的文件，那么ZIP文件就没有多大用处。

ZIP files wouldn't be much use if we couldn't also get the files back out of the archive for normal use.

youdao