Here, the client USES some form of file-transfer protocol such as FTP to get a complete copy of the file.

这种场景中，客户机使用某种形式的文件传输协议(例如ftp)获得完整的文件副本。

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It may even tuck away a complete copy of the file that was retrieved, so that it can show you a diff without accessing the server.

它可以从取得的文件的整个拷贝里面大肆翻找，它不连接到服务器就能告诉你差别。

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