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  1. Oxford Dictionary

    boron

    • IPA[ˈbɔːrɒn]

    英式

    • n.
      the chemical element of atomic number 5, a non-metallic solid.

    • noun: boron

    • 相關詞

    boron carbide

    • n.
      A compound of boron and carbon, especially B4C, an extremely hard, black crystalline compound. ...

    HOUGHTON MIFFLIN

    • 更多解釋

    boron

    • IPA[ˈbôˌrän]

    美式

    • n.
      the chemical element of atomic number 5, a nonmetallic solid.

    Oxford American Dictionary