The Maya poured the chocolate drink back and forth between two containers so that the liquid had a layer of bubbles,or foam.

VOA: special.2010.02.17

These two characters are as if there is a wall between them, a wall of foam.

在这两者之间,就像是有一堵墙，一堵用泡沫筑成的墙。

耶鲁公开课 - 1945年后的美国小说课程节选

because there is a bar on the corner of MaCarren Park that gives you Margaritas in foam cups.

因为在MaCarren公园的拐角处有一个酒吧，在那里你可以用塑料泡沫杯品尝玛格丽特鸡尾酒。

关于威廉斯堡 - SpeakingMax英语口语达人

So not all puppetry is just foam and fleece. It's very intricately carved pieces of art."

VOA: special.2009.09.23

And the white foam on the waves looked like falling snow.

VOA: special.2010.03.06

The water moves so fast, it becomes white with foam.

VOA: special.2009.02.16

He can no more judge the wishes of the great mass of our people by the words of these middlemen than he can measure the ocean's silent depths by the foam upon its waves."

VOA: special.2010.06.24

Foam insulation damaged the shuttle's heat tiles during launch, which led to Columbia breaking apart upon re-entry.

VOA: standard.2009.07.16

Eric, you stood up once,and it was a foam board. But there's whale watching, too.Come with us.

VOA: standard.other