As always, keep backups of all the files you change and have at least one system backup image in case the worst happens.

永远记住要备份您所修改过的所有文件，为了防止最坏的情况发生，您还需要有至少一个系统备份的映像。

youdao

As always, keep backups of all the files you change and have at least one system backup image in case the worst happens.

永远记住要备份您所修改过的所有文件，为了防止最坏的情况发生，您还需要有至少一个系统备份的映像。

youdao