动词短语
中文翻译：备份文件同义词
同义词：
['back up', 'back up files', 'backup data', 'save a copy']
例句：
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1. Before you start working on the project, make sure to file your backups.
在你开始工作之前，请确保备份你的文件。
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2. The server crashed, so we need to file our backups before starting a new one.
服务器崩溃了，所以我们需要在开始新项目之前备份我们的文件。
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3. If you lose your phone, don't worry;you can always file your backups and start over.
如果你丢了手机，别担心，你可以备份你的文件并重新开始。