boil over (boiling,boiled,boils)

• 1.  

  PHRASAL VERB（动词词组） When a liquid that is being heated boils over, it rises and flows over the edge of the container. 煮沸而溢出

  例：

  Heat the liquid in a large, wide container rather than a high narrow one, or it can boil over.

  液体加热时要放进宽大的容器里，不要放进细长的容器里，否则它会溢出来。

• 2.  

  PHRASAL VERB（动词词组） When someone's feelings boil over, they lose their temper or become violent. (情绪) 失去控制

  例：

  Sometimes frustration and anger can boil over into direct and violent action.

  有时无奈和愤怒会失去控制，变成直接的暴力行为。