单词：look back on
回头看,回顾,追忆
look back on的用法和样例：
例句
- I like to look back on my high-school days.我喜欢回顾中学生活时代。
- She looked back over a distance of ten years.她回顾过去十年的时间。
- How far does your memory go back?你能回忆起多久以前的事情？
- Her mind reposed on the happy old days.她回忆起愉快的往日。