干活

例句：

1. 1. She has been working hard to improveher English.
   她一直在努力提高她的英语水平。
2. 2. The farmer has been working all daywithout a break.
   农民整天都在工作，没有休息。
3. 3. The team worked tirelessly toachieve the goal.
   团队不懈地努力以实现目标。