| 短语 | be on / off duty |
| 释义 | be on / off duty 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 it值班（值勤）/下班（不值勤）:•He's on night duty .他在值夜班。•Mary goes on duty (=starts working) tonight at half past ten.玛丽今晚十点半上班。•What time do you go off duty (=finish work) ?你什么时候下班？ |
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英语短语词组词典共收录525608条英汉双解短语词组词条，基本涵盖了全部常用短语词组的翻译及用法，是英语学习的有利工具。