falling-out ------- 争吵（名词）

英文释义
(noun) Quarrel; a serious, angry disagreement.

例句
The two stubborn old friends had a falling-out last month, and unfortunately they have not spoken to each other since then.
两位固执的老朋友上月发生了争吵。不幸的是，他们自那以后彼此再不讲话。