Britain threatened to break off diplomatic relations.

英国威胁说要断绝外交关系。

Pearl, who had enough shadow in her own little life, chose to break off all acquaintance with this repining brook.

在她小小的生命中已经有了太多的阴影的珠儿，便放弃了这条如泣如诉的小溪，不再和它交往。

My theory is that if one is doing it, all do it until the first one has the courage to break off—it's peer pressure.

我的理论是，如果有人开始做这类节目，其他人也都会做下去，直到第一个人有勇气挣脱为止——这是同行压力。

Let's break off for lunch.

我们暂停工作去吃午饭吧。

You'd better break off with him.

你最好与他一刀两断。