单词
tourmaline
英 ['tʊəməlɪn; -liːn] 美['tʊəməlɪn]
基本信息
英英释义 实用场景例句
  • n. [矿物] 电气石

英英释意

1. a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones
tourmaline相关单词
tourmaline
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