Translation of "back sb up" - English-Mandarin Chinese dictionary

back sb up

phrasal verb with back /bæk/ verb

to support or help someone

My family backed me up throughout the court case. 打官司期间,我的家人一直在支持我。

to say that someone is telling the truth

Honestly, that's exactly what happened - Claire will back me up. 实话实说,这就是当时的情况——克莱尔会为我作证。
Will you back me up if I say that I never saw him? 如果我说从未见过他,你会为我作证吗?

(Translation of “back sb up” from the Cambridge English-Chinese (Simplified) Dictionary © Cambridge University Press)