The mass of bubbles formed on the surface of a liquid by agitation or fermentation; foam.

因搅动或发酵所起的泡沫；浮沫。

Superficial or shallow knowledge.

肤浅的见识。

To cause to foam.

使起泡沫。

To give vent to, as foam.

喷沫。

To foam.

起泡。