看来他已经在备份内存的一个特殊文件中创建了一个副本。

It seems he had created a copy in a special file on a backup memory.

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It seems he had created a copy in a special file on a backup memory.

backup 是名词,由动词短语 back up(支持、备份)合并而成,指"备份、后备"的意思。在计算机领域特指为防止数据丢失而额外保存的副本文件或存储设备。

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