break off
v.断绝;摘;把…折断;使脱落
网络中断;突然停止;打断
We have decided to break off the diplomatic relations with that country.
我们决定中断与那个国家的外交关系。
break out
na.发生;(战争等)突发;(囚犯等)逃脱;【航】起(锚)
网络爆发;突然发生;逃出
We had no idea whether the war would break out or not up to yesterday.
直到昨天,我们还不知道战争是否会爆发。