题目内容：

catch up with /keep up with /keep pace with
这几个词有什么区别?

优质解答

catch up with 强调开始是落后的,从后面追上.
v.
赶上,逮捕,处罚
keep up with 强调始终保持跟在后面,不掉队
v.
跟上
keep pace with 强调保持并列的状态
v.
并驾齐驱