无事奔忙

例句：

1. 1. She is always busy with her work.
   她总是忙于工作。
2. 2. The restaurant is very busy on weekends.
   这家餐厅周末非常忙。
3. 3. He was so busy that he didn't have time to eat dinner.
   他太忙了，以至于没有时间吃晚餐。