pumice (stone)
UK ['pʌm.ɪsˌstəʊn] US [-ˌstoʊn] noun countable or uncountable
■a type of grey light stone which is used in pieces or as a powder for rubbing things to make them smooth 浮石，轻石（用来摩擦物体使其光滑）•Pumice is produced in volcanic eruptions.浮石是在火山爆发中产生的。 •You can use a pumice stone in the bath to remove dry skin from your feet.你洗澡时可以用浮石去除脚上干燥的死皮。 |