foam at the mouth

1.The mad dog was foaming at the mouth.

疯狗白沫。

2.He looked like a madman, foaming at the mouth.

白沫, 看上去像个疯子。

3.He is foaming at the mouth about the committee's decision.

正为委员会的定大发其火。

4.He stood there foaming at the mouth. I’ve never seen anybody so angry.

站在那儿大发雷霆，我还过有人生这么大气的。