英语单词“beat a dead horse”的翻译、意思、用法、释义-英汉词典

单词	beat a dead horse
释义	beat a dead horse1.■[口语]马后炮；白费力，徒劳2.■鞭打死马令其奋蹄驰骋，徒劳无功，做无用功；炒冷饭，首轮已讨论透彻的题目；试图再引起业已消失的兴趣
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