foamed polyethylene

例句：

1. 1.The milk was foamy and not too hot.
   牛奶是泡沫状的，不太烫。
2. 2. The beer had a foamy head that made it look like it was chugging.
   啤酒有泡沫头，看起来就像是在猛灌一样。
3. 3. The bubbles in the drink were foamed with air.
   饮料中的气泡被空气泡沫化了。