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单词 be on call
释义 be on call be on call  → be on call at call2(1) if someone such as a doctor or engineer is on call, they are ready to go and help whenever they are needed as part of their jobbe on call  
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英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。

　

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更新时间：2026/7/5 16:21:58