英语单词“whistle down”的翻译、意思、用法、释义-英汉词典

单词	whistle down
释义	whistle down1.■[美国英语]火车司机鸣笛(通知制动工)：One can whistle down the brakes when something happened.发生什么事情的时候可以鸣笛通知制动工。
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