n.浮石；浮巖

v.用浮石磨；用輕石擦凈

Add only a little alcohol and pumice as you work. 每次只要加很少的酒精和浮石粉。

Lake Taupo's shore is covered with pieces of pumice. 陶波湖岸上布滿了一片片的浮石。

The wall was built by piling up pumice stones. 這面墻是用浮巖壘成的。

Pumice stones are used in the wash to create a worn look. 水洗時用浮巖石頭會帶來一種破舊的感覺。