你应当定期备份文件—把所有文件保存在一个地方令文件备份易如反掌。
You should back up files regularly-and keeping all your files in one place helps make backup a snap.
当4ExtRecovery创建一个备份，它会保存在备份文件夹，你对你的分区的文件系统在创建时的额外 信息。
When 4ExtRecovery creates a backup, it will save extra information in your backup folder about which file systems you had on your partitions at the time of creation.
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