pumice
pumice 英 ['pʌmɪs] 美 ['pʌmɪs]
vt. 用轻石磨；用浮石去污；磨光 n. 浮石；轻石
进行时:pumicing 过去式:pumiced 过去分词:pumiced 第三人称单数:pumices 名词复数:pumices
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- vt. 用轻石磨；用浮石去污；磨光
- n. 浮石；轻石
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1. Line the bottom inch or two with small rocks or pumice to ensure good drainage.
用小石头或浮石在花盆底部划上一两英寸长的口子确保正常排水。
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2. Walking through the rubble of the camp one afternoon, Seelaus, who often picked up volcanic pumice stones, spotted a special one.
一天下午，西罗斯走在营房的鹅卵石地面上时，平时喜欢收集火山浮石的他突然发现地上有一块很特别的鹅卵石。
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3. As long ago as 5000 BC the Egyptians were making a tooth powder consisting of powdered ashes of ox hooves, myrrh, powdered and burnt eggshells, and pumice.
早在公元前5000年，埃及人就在制作牙粉，其成分包含牛蹄粉灰、没药、粉状和烧焦了的蛋壳以及浮石。
- pumice (n.) c. 1400, from Anglo-French and Old French pomis (13c.), from Late Latin pomicem (nominative pomex, genitive pumicis), from Oscan *poimex or some other dialectal variant of Latin pumex "pumice," from PIE *(s)poi-mo-, a root with connotations of "foam, froth" (see foam (n.)). Old English had pumic-stan. As a verb, early 15c., from the noun.
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