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  1. allantoin

    • IPA[əˈlantəʊɪn]

    英式

    • n.
      a crystalline compound formed in the nitrogen metabolism of many mammals (excluding primates).
    • noun: allantoin

    • 更多解釋
    • IPA[əˈlantōən]

    美式

    • n.
      a crystalline compound formed in the nitrogen metabolism of many mammals (excluding primates).
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