名词
中文翻译：忙碌
同义词：
['bustle', 'bustle', 'engross', 'frenzy', 'hustle']
例句：
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1. Shewas so busy with her work that she forgot to call her friend.
她忙于工作，以至于忘了给她的朋友打电话。
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2.The restaurant was so busy that it took us ages to get a table.
这家餐厅太忙了，我们等了很久才拿到桌子。
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3.He was so busy with his studies that he barely had time to eat.
他忙于学习，几乎没有时间吃饭。