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单词 be on/off duty
分类 翻译、意思、用法、释义、英译汉、汉译英、英汉双解词典
释义 be on/off duty be on/off duty  → be on/off duty at duty(1) to be working or not working at a particular time, especially when you are doing a job which people take turns to do, so that someone is always doing itbe on/off duty  
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更新时间：2026/6/22 9:52:09