可用拷贝资源到目的地，删不删除文件目录或文档只在目的地有用。

It copy source to destination with or without deleting files and directories only in destination.

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处理本地删除的文件和目录。

Handle local deletion of files and directories.

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然而，如果您碰巧需要刚才删除(意外删除？)的文件或目录，您可以在存档中查找原始副本。

However, if you happen to need the file or directory you just deleted (by accident?), you can look in your archive for a pristine copy!

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