rush up 和run after是词组吗，如何翻译，最好可以举例，不举也行

rush up:催促
例如：I wanted to rush up and have it out with them. But would that save him? Hardly.
我想跑上去和他们讲道理，但这能救他吗？恐怕不行。

run after：追捕, 追求, 跟踪
例如：Two policemen run after robber.两名警察追赶强盗。

rush up 就是跑的快点,或者提高速度,或者猛冲
run after 就是说在...后面跑 还有一意思就是追求...追求女生啊之类

rush up 催促
run after 追求，跟踪，追捕..