vi.　起泡沫；吐白沫form or send out foam; froth

　～ away〔off〕　成泡沫消失
　～ over　起泡沫溢出
　～ up　泡沫上升
　～ along　沿…起泡沫
　～ into　把泡沫倒入
　～ over　使泡沫盖过
　～ with rage　气得口吐白沫

　Milk foamed into the pails.　牛奶冒着泡沫注入桶中。
　The beer foamed up and overflowed the glass.　啤酒冒着泡沫，溢出了玻璃杯。

 ♣ foam at　(v.+prep.)
1. 口吐白沫have bubbles forming at the lips, as in certain diseases
　He looked like a madman, foaming at the mouth.　他口吐白沫，看上去像个疯子。
2. 大怒be very angry
　He is foaming at the mouth about the committee's decision.　他正为委员会的决定大发其火。
 ♣ foam with　(v.+prep.)
　非常气愤　be very angry
　He is foaming with rage over some decisions.　他正为一些决定生气。

U 泡沫；泡沫材料mass of small, usually white, air bubbles formed in or on a liquid

　break into ～　变成泡沫
　form ～　起泡沫
　throw ～　喷泡沫
　sent out ～　吐泡沫
　plastic ～　塑料泡沫
　in a ～　浑身是汗
　～ of the mouth　嘴里的唾沫

　The glass of beer was mostly foam.　这杯啤酒大部分是泡沫。
　This is a foam product.　这是一种泡沫产品。

　［词源］拉丁语spuma（泡沫）