英语词汇file extension怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	file extension
释义	file extension ˈfile exˌtension noun [countableC] the letters, for example .doc, at the end of the name of a computer file that show what type of file it is
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