名词
中文翻译：文件
同义词：
['record', 'document', 'folder', 'case']
例句：
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1. He filed a complaint against the company for unfair labor practices.
他因公司不公平劳动实践向公司提出投诉。
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2. The police are investigating the file of the missing child.
警方正在调查失踪儿童的文件。
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3. She carefully filed her papers before leaving for vacation.
她离开前仔细整理了她的文件。