Translation of "back sb up" - English-Traditional 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. 打官司期間,我的家人一直支持我。

to say that someone is telling the truth

Honestly, that's exactly what happened - Claire will back me up. 實話實說,這就是當時的情況——克萊爾會為我作證。
Will you back me up if I say that I never saw him? 如果我說從未見過他,你會為我作證嗎?

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