闲工夫

例句：

1. 1. We need to make good use of our free time to study.
   我们需要好好利用我们的空闲时间来学习。
2. 2. He spent his leisure time reading books.
   他花他的闲暇时间读书。
3. 3. During the holiday, we have plenty of free time to relax and enjoy ourselves.
   在假期里，我们有很多空闲时间来放松和享受自己。