名词短语
中文翻译：文件时间戳
同义词：
['timestamp', 'file timestamp例句：1. The server automaticallysets a timestamp for the file whenit is uploaded.（服务器在上传文件时会自动设置一个时间戳。）2. Thetimestamp helps to ensure thatthe file was not modified betweenupload and download.（时间戳有助于确保文件在上传和下载之间没有被修改。）']
例句：
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1. The server automaticallysets a timestamp for the file whenit is uploaded.
服务器在上传文件时会自动设置一个时间戳。
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2. Thetimestamp helps to ensure thatthe file was not modified betweenupload and download.
时间戳有助于确保文件在上传和下载之间没有被修改。
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3. Thetimestamp can be used to track changesin the file over time.
时间戳可以用来跟踪文件随时间的变化。