pumice [ˈpʌmɪs]

例句:

• The denser crystals sink and the pumice dust is lofted.
  来自Scientific American
• The nursery bathroom, with its...well-worn paraphernalia of sponges, face-cloths...and pumice-stone.
  来自R. Lehmann
• Marilyn's pitted skin, breasts of carved pumice, volcanic thighs, a face of ash.
  玛丽莲凹凸不平的皮肤, 浮石雕刻般的双乳, 火山似的大腿, 死一样苍白的脸.
  
• Our company supplies various types of brush, foot file, pumice.
  我们公司供应各类刷子, 足档案, 浮石.
  
• The pumice with the light and dark bands is the important evidence.
  白色与黑褐色相混杂的浮岩是岩浆发生混合的重要证据.
  
• The grass grows in a thin layer of sand, clay and volcanic pumice.
  来自WSJ