1. He spent his spare time composing poetry.
   他用空余时间写诗。
2. He paints in his spare time.
   他在空闲时绘画.
3. We must see that our spare time is profitably occupied.
   我们要使业余时间得到有效的利用。
4. He repairs radios for his friends during his spare time.
   他利用业余时间给朋友们修理收音机。
5. All he desired then was some spare time for study.
   那时候他想的只是有些空余时间能进行学习。

　2个名词解释