Stop acting like a baby! Pull yourself together!

别孩子气了， 把感情控制一下吧!

《新英汉大辞典》

Stop acting like your father.

不要像你爸爸一样。

youdao

So let's stop acting like it is, and kill this outmoded social convention.

因此，让我们别再被邮件和旧观点奴役，从今而后废除掉这种过时的惯例吧！

youdao

Many Americans blamed President Grant for not acting quickly enough to stop the activity of his two friends.

VOA: special.2010.02.18

One is a quick-acting "rescue" medicine taken when needed to stop asthma symptoms.

VOA: special.2009.07.28

John Rickards examines the problem of persuading people with damaged ethics to stop acting unethically.

FORBES: Reviews Redux: Let's Up The Ante

Until then, the Pentagon should stop acting like it's bound to Smith-Mundt.

CENTERFORSECURITYPOLICY: Smith-Mundt does NOT apply to DoD

"You have to stop acting like a tourist, " she says.

FORBES: How Authentic Is Your Vacation?