pumices的中文意思、音标与词形变化

v. 浮岩, 浮石, 轻石（轻而多孔, 可以去除皮肤污垢或使皮肤光滑, 其粉剂可作清洁剂或抛光剂）( pumice的第三人称单数 )

n a light glass formed on the surface of some lavas; used as an abrasive v rub with pumice, in order to clean or to smoothen