frothiness

例句：

1. 1. The milk hada distinct frothiness to it.
   牛奶有很明显的泡沫状。
2. 2. Thedish was covered in alayer of foaminess.
   这道菜上覆盖着一层泡沫状。
3. 3.The bubbles on the surface of thewater were a testament to itsfrothiness.
   水面上的气泡证明了它的泡沫状。