look back 有后悔的意思吗（look back意思是什么）

答：没有。look back大致上有三种用法，一种表示回头看的意思，第二种表示回忆的意思，第三种表示回顾或回头查找的意思。分别举例如下：

1. He looked back on him and said goodbye.

 2. I am still sad to look back on the case.

3. Let's look back on the log book for what has happened. 

4. Could you look back up the address for me?

若想表示后悔，则应该用regret更恰当。