Pumice
n. 轻石, 浮石\\nvt. 用浮石磨光
📖 牛津释义
pumice
(also `pumice-stone) n [C, U](piece of) light porous lava used for removing stains or rough patches of skin and (in powder form) for cleaning and polishing 浮岩, 浮石, 轻石（轻而多孔, 可用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）.
🗣️ 情景例句
Sure. Where are you going?
当然。您要去哪里？
One father is more than a hundred school-masters.
一个父亲胜于一百个教师。
And now medical care helps to keep people alive longer.
现在的医疗保健使得人们活得更长。