on nights

例句：

1. 1. I like to go for a walk on the weekends when the weather is nice.
   我喜欢在周末天气好的时候去散步。
2. 2. The movie was so good that it made me want to watch it again on the next night.
   这部电影太好看了，让我想在下一晚再看一遍。
3. 3.She spent most of her time reading books on nights when she had free time.
   她大部分时间都在阅读书籍，当她有空的时候。