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pumice英英释意- 查字库
pumice
英 ['pʌmɪs]
美['pʌmɪs]
- vt. 用轻石磨；用浮石去污；磨光
- n. 浮石；轻石
英英释意
- 1. a light glass formed on the surface of some lavas; used as an abrasive