词汇“徒劳”的意思、用法、释义、翻译、读音、例句、短语、词组-国际大辞典

单词	徒劳
释义	徒劳徒劳[tú láo]1.■futile effort; fruitless labour:要想阻止历史潮流是徒劳的。It is always futile to try to hold back the progress of history.
随便看	valve microphone effect valve mixer valve needle valve noise valve nut gasket valve oil valve oil shield valve-opening diagram valve-operating stud valve operation mechanism valve panel valve parameter valve passage resistance valve patch valve phase indicator valve pin valve plug valve pocket valve position valve positioner valve position indicator valve positioning servo loop valve position switch valve position transducer valve potentiometer

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