| [/fəum; fom/] n [U] 用法:
1 (a) mass of small, usu white, air bubbles formed in or on a liquid 泡沫:
The breaking waves left the beach covered with foam. 浪花弄得海滩都是泡沫.
(b) frothy bubbles of saliva or perspiration 唾沫; 汗珠. 用法:
2 any of various chemical substances forming a thick bubbly mass and used for different purposes （化学物质的）厚层泡沫:
`shaving foam 剃须泡沫膏. 用法:
3 rubber or plastic in a spongy form, used to fill seats, cushions, etc 泡沫橡胶; 泡沫塑料:
[attrib 作定语],foam `rubber 泡沫橡胶. foam 2
v [I, Ipr] form or send out foam; froth 起泡沫; 发出泡沫:
a glass of foaming beer 一杯起泡沫的啤酒 *
The sick dog foamed at the mouth. 那只病狗口吐白沫. *
(fig 比喻) After having to wait an hour the customer was foaming (at the mouth) with rage, ie obviously very angry. 那顾客等了一小时後气得七窍生烟. |