短语
中文翻译：忙于某事
同义词：
['engaged in', 'preoccupied with', 'absorbed in']
例句：
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1. He is sobusy that he cannot be occupied in anything else.
他太忙了，无法再做其他事情。
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2.She was so engrossed in her work that she didn't notice the time passing.
她全神贯注于工作，以至于没有注意到时间流逝。
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3. The child was so absorbed in his play that he didn't realize it was time to go home.
孩子沉浸在他的游戏中，以至于没有意识到该回家了。