老茧的

例句：

1. 1. The worker had a deep callous on his hand from years of hard work.
   这位工人手上有厚厚的老茧，是多年辛勤工作的结果。
2. 2. The old man had a calloused hand that he used to pick up stones with.
   这位老人的手很粗糙，他以前用它来捡石头。
3. 3. The farmer has developed a calloused hand from working in the fields all day.
   这位农民因为整天在田里劳作，手上长出了老茧。