累活

例句：

1. 1. He has been working hard all day, and now he is exhausted.
   他整天都在努力工作，现在他已经筋疲力尽了。
2. 2. The farmer had to work tirelessly to harvest the crops.
   农民不得不拼命地工作来收获庄稼。
3. 3. She took on a lot of responsibilities to help her family during the difficult times.
   她在困难时期承担了很多责任来帮助家人。