在英语学习中，很多同学会疑惑：“on the evening”这个表达是否正确？答案是：视情况而定。
1. 通常使用 “in the evening”
在泛指“晚上”这个时间段时，标准英语使用介词 in：
- We usually go for a walk in the evening.
- She reads books in the evening.
2. 什么时候用 “on the evening”？
当特指某一天的晚上时，使用 on the evening of + 具体日期或事件：
- On the evening of July 4th, there was a big fireworks show.
- On the evening of the conference, we had a dinner party.
注意：不能单独说 “on the evening” 而不加具体时间，否则不符合习惯用法。
3. 常见错误示例
❌ I’ll call you on the evening.
✅ I’ll call you in the evening.
❌ We met on the evening last week.
✅ We met in the evening last week.
✅ We met on the evening of May 10th.
总结
✅ 泛指晚上 → in the evening
✅ 特指某日的晚上 → on the evening of [date/event]
❌ 单独使用 “on the evening” → 不自然，通常错误