catch up with 什么意思？

keep up with 是保持着距离/程度

catch up with 才是赶上

Example:

I must catch up with my homework for the past two days which i was absent.

我一定要跟上我前两天也就是我缺席的两天的功课。

赶上

keep up with与某人保持同步,强调状态

catch up with赶上某人,强调动作

保持..

两个短语可以交换使用,意思一样

追赶上某人

keep up with 跟得上

catch up with 赶上

catch up with 也有赶上sb的意思,keep up with后常加pace等指步伐

基调等词.

它是追上某人的意思

keep up with 是同别人保持不落下的意思.

这两个词语可以互换

俺们老师讲过