做苦工者

例句：

1. 1. He has been working as a laborer for many years.
   他已经辛苦工作了很多年。
2. 2. The farmer toils away in the fields every day.
   农民每天在田里辛勤劳作。
3. 3. Hard work is essential for success.
   辛勤工作是成功的关键。