Busy doing something（忙于做某事）；Occupied with something（忙于某事）；Engaged in doing something（忙于从事某事）。相关的词组有：be occupied with（忙于做某事）；be overloaded with（疲于应付某事）；be tied up with（不可开交，脱不了身）。
忙于做某事多种表达
最佳答案Busy doing something（忙于做某事）；Occupied with something（忙于某事）；Engaged in doing something（忙于从事某事）。相关的词组有：be occupied with（忙于做某事）；be overloaded with（疲于应付某事）；be tied up with（不可开交，脱不了身）。
