to become well again after a serious illness, especially when you might have died

They said the operation had been successful and they expected his wife to pull through. 他们说手术很成功，预计他妻子能度过危险。

to succeed in dealing with a difficult period, or to help someone do this

He'd never have managed on his own, but his colleagues have pulled him through. 他一个人决不可能做到，但是他的同事们帮他度过了难关。

It was a crisis year for the company, but we have pulled through. 对公司来说这是艰难的一年，但我们还是度过了难关。