foam

n. 泡沫,水沫
v. 起泡沫

He was foaming at the mouth because of his daughter's rudeness.

他女儿的粗暴态度使他暴跳如雷。

When the horse had finished the race, its sides were wet with foam.

这匹马结束比赛时，它的脊背被汗水湿透了。