泡 (pào): bubble; to steep

The child blew air into the milk with a straw, and many little bubbles appeared in the cup.

After the water boiled, bubbles kept rising from the bottom of the pot, so I quickly put the noodles in.

As soon as this bottle of soda was opened, a lot of foam gushed out and almost spilled onto the table.

He added body wash to the bathtub and stirred it with his hand; a thick layer of foam immediately floated on the water.

The beer was poured too quickly, and the foam in the glass overflowed all at once, wetting the tablecloth.