Break off means to separate: break off a piece of chocolate.

Break off的意思是分开：掰开一块巧克力。

The lion breaks off his chase.

这只雄狮放弃了追逐。

But the inner cortex of thinner hair breaks off less evenly.

但较细毛发的内部皮层断裂茬口并不平整。

An iceberg forms on land, then breaks off from a glacier into the ocean.

冰山是在陆地上形成的，然后从冰川上脱落到海洋中。

Two days after the attack, the Vichy government breaks off the diplomatic relations with Britain.

攻击发生两天后，维西政府与英国断绝外交关系。

When a rock breaks off from a mountain by an earthquake, the fall pulverizes it.

当一块岩石在地震中从山上脱落时，坠落会让其粉碎。

The U.S. places an embargo on Cuba and soon after it breaks off, diplomatic relations.

美国和古巴终止外交关系之后，对古巴实行禁运。

Ron sniggered, breaking off when Hermione caught his eye.

罗恩窃笑起来，直到赫敏用眼神阻止他。

In this process, a portion of one chromosome breaks off and attaches to a different chromosome.

在这个过程中，一条染色体的一部分脱落并附着在另一条染色体上。

Scoring the darts with piranha teeth ensures the poisoned tip breaks off in the victim's body.

用食人鱼的牙齿打磨飞镖能确保有毒的箭头刺穿猎物的身体。

I distinctly remember you breaking things off with me.

我很清楚的记得你和我已经划清界线了。

He broke off for the second time.

他第三次突然停了下来。

And tonight he broke off their engagement.

今晚他解除了他们的婚约。

To break it off with her.

相信这家伙吗。

But she broke off abruptly and looked over her shoulder.

她猛地停住话头，扭头朝身后望去。

So, I just broke it off with her.

所以我和她分手了。

He broke off, looking out of the window.

他顿住了，眼睛望着窗外。

But I-I broke it off with him.

但我已经跟他分手了。

I-I broke it off with the doctor.

所以我跟医生分手了。

Almost nothing could make them break off.

没有什么能让它们放弃攻击。