英语词汇“be on/off duty”的翻译、意思、用法、释义-英汉双解词典-DIY生活网

单词	be on/off duty
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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