adj.起泡的；多泡的；空洞的
Beat the eggs up to a frothy consistency. 把鸡蛋打成黏稠泡沫状。
She pauses to sip a frothy iced coffee from a plastic tumbler. 她停下来呷了一口塑料杯里浮满泡沫的冰镇咖啡。
