重点

1.catch up to someone 追上某人

I’ll catch up to you.

我会追上你的。

2.catch up with someone 和某人叙旧

Let’s go for a coffee - I need to catch up with you.

我们去喝杯咖啡吧——我得和你叙叙旧。

3.catch up on something 赶上进度

Things really piled up when I was on vacation. I need to catch up on a lot of work.

我度假的时候事情积攒了一堆。我有很多工作需要补上。