基本解釋浮巖凝灰?guī)r同根派生 pumice-tuff相關詞英漢例句pumice tuff 浮石凝灰?guī)rThis kind of rock is called tuff. 這裡的巖質是凝灰?guī)r。A light - colored tuff used in hydraulic cement. 淡色凝灰?guī)r可以用來制造水泥。To clean,polish,or smooth with pumice. 用浮石(把某物)磨光使之變得乾淨、光亮或柔滑To clean, polish, or smooth with pumice. 用浮石（把某物）磨光使之變得乾淨、光亮或柔滑pumice-tuff更多例句