"broke out","broke into","broke in","started all of a sudden

eak out 爆发（火灾,战争等爆发）；被提拔职务
When the fire broke out,the students showed good discipline。
火灾发生时,这些学生表现出良好的纪律性。
break into 闯入；破门而入
The thieves broke into the bank and stole the safe。
盗贼非法强行闯入银行偷了保险箱。
break in 打断；闯入；训练；使逐渐习惯
They broke in and made off with all the furniture。
他们破门而入,把所有家具都搬走了。
She broke in on our conversation。
她突然插话,打断了我们的谈话。
all of a sudden 突然地,出乎意料地
All of a sudden,it started pouring。
突然间下起倾盆大雨。