1、break up

（使）分裂；（被）拆分；(使）破碎

Civil war could come if the country breaks up.

如果国家分裂就会爆发内战。

There was a danger of the ship breaking up completely.

这艘船有彻底解体的危险。

（恋人）分手；（夫妻）结束关系

My girlfriend had broken up with me.

我的女朋友已跟我分手了。

He felt appalled by the whole idea of marriage so we broke up.

他被结婚的想法吓住了，因此我们分了手。

散（会）；（使）解散

A neighbour asked for the music to be turned down and the party broke up.

因为一个邻居要求把音乐音量调低，聚会便散了。

Police used tear gas to break up a demonstration.

警察使用催泪瓦斯驱散示威人群。

2、common

常见的;普遍的

His name was Hansen, a common name in Norway.

他的名字叫汉森，在挪威是一个常见的名字。

Oil pollution is the commonest cause of death for seabirds.

石油污染是造成海鸟死亡最常见的原因。

共有的;共同的

Moldavians and Romanians share a common language.

摩尔达维亚人和罗马尼亚人使用同一种语言。

Such behaviour is common to all young people.

这种行为在年轻人中司空见惯。

众所周知的，共有的，共识的

It is common knowledge that swimming is one of the best forms of exercise.

大家都知道游泳是最好的锻炼方式之一。

the common view that acupuncture is only a fringe area of medicine.

针灸仅仅是医学的一个边缘领域的这种普遍看法