1.break into 意思是“强行闯入”.
A thief broke into my house yesterday evening.昨天晚上有一个小偷闯入我家.
2.break out 意思是“爆发、突然发生”.
A fire broke out after we had gone home．在我们离开家后突然发生大火.
3.break away 意思是“突然离开、戒除”.
You must break away from bad habits．你必须戒除坏习惯.
4.break down 意思是“发生故障”.
My car suddenly broke down when I drove to America.当我开车去广州的时候,车突然抛锚了.
5.knock down 意思为“撞到”.
He ran so fast that he knocked an old man down.他跑太快了以至于撞到了一个老人.