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allene例句_allene英汉例句_allene双解例句_魏碑心思朗文词典
魏碑心思朗文词典

allene

A 开头单词

常见例句

    用作名词 (n.)

  • Allene is an isomer of methyl acetylene.
    丙二烯是甲基乙炔的一种异构体。
    • 返回 allene