Oh! I can't believe he remembered! 哦!我真不敢相信，他居然还记得!

　　Remember back in college? We had a lot of fun. 回想上大学的时候，我们当时很开心。

　　How can you not remember that? 你怎么能想不起来呢?

　　Did you take your vitamins this morning? 你今天早上吃维生素片了吗?

　　I don't remember. I'll take them now. 我不记得了。我现在就吃。