劍橋詞典a piece of pumice used for rubbing things to make them smooth 浮石，輕石（用來(lái)摩擦物體使其光滑） You can use a pumice stone in the bath to remove dry skin from your feet . 你洗澡時(shí)可以用浮石去除腳上干燥的死皮。 返回 pumice stone