If you can catch them, you're a brave one!

如果你能抓住他们，你就是一个勇敢的人！

youdao

If you or your child catch measles, mumps, or rubella, there's no treatment that can get rid of the viruses.

如果你或你的孩子感染了麻疹、腮腺炎或风疹，没有治疗方法可以除去这些病毒。

youdao

If a good runner like you can't catch up with him, how can I?

你跑得那么快还赶不上他，何况我呢？

《新英汉大辞典》

One is "Catch Me If You Can,"

VOA: special.2011.06.10

There may be some inefficiencies, and at some point, if you catch me in the hallway, I can give you a sermon on what goes on inside that reactor.

可能会有某些损耗，如果你能在过道上遇到我的话，我会给你详细讲讲,里面到底发生了什么。

麻省理工公开课 - 固态化学导论课程节选

The SROs have complex regulatory equipment, computers that can discover insider trading and the SROs will catch you or they may catch you if you try.

自律监管机构拥有高端的监督设备,能够发现内幕交易的计算机,只要你试图进行内幕交易就可以抓住你

耶鲁公开课 - 金融市场课程节选

But soon the season is opening when you can try to catch them if you can.

FORBES: Connect

You catch me if you can.

BBC: Alan Watkins

It read: "Can't catch me, try to catch me if you can".

BBC: Snowdon 4x4 case: Craig Williams jailed for 22 months