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  1. Oxford American Dictionary

    twinned

    • IPA[twind]

    美式

    • adj.
      (of a crystal) that is a composite consisting of two (or sometimes more) parts which are reversed in orientation with respect to each other (typically by reflection in a particular plane)
    • 釋義

    形容詞

    • 1. (of a crystal) that is a composite consisting of two (or sometimes more) parts which are reversed in orientation with respect to each other (typically by reflection in a particular plane) cerrusite, pseudo-hexagonal crystals, usually twinned a mass of twinned crystals