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be unable to leave what one is doing at the moment; cannot get away; be tied up at present❍ 昨晚我没来开会，因为我～。I was absent from the meeting last night because I was unable to leave what I was doing at the moment.
英汉词典共收录311570条英汉翻译词条，基本覆盖所有常用英文单词的例句及中文翻译，是不可多得的英语学习材料。