短语 dawn on 的意思是某人终于明白一事。
- It dawned on me that I hadn't been sick for two years.
- It was several hours before the truth finally dawned on Michael: he was in the wrong city.
值得注意的是，另一个短语 the crack of dawn 的意思是黎明，破晓。
- We have to leave tomorrow at the crack of dawn. Try to get some sleep.
- Everyone woke up at the crack of dawn on Christmas morning. They wanted to see what presents they had been given.
