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  1. placoderm

    • IPA[ˈplakədərm]

    美式

    • n.
      an extinct fish of the Devonian period, having the front part of the body encased in broad flat bony plates.
    • noun: placoderm, plural noun: placoderms

    • 更多解釋
    • IPA[ˈplakə(ʊ)dəːm]

    英式

    • n.
      a fossil fish of the Devonian period, having the front part of the body encased in broad flat ...

    Oxford Dictionary

  2. 知識+

    • 古代海洋生物英文翻譯

      ..._skull_QM_email.jpg/180px-Dunkleosteus_skull_QM_email.jpg Placoderm 盾皮魚綱(學名Placodermi)是一類已經滅絕的魚類,大約生活在志留紀...

    • 請大家幫我翻譯這句英文, 謝謝

      bear live young,基本上就是胎生的意思,在此就是最早的胎生動物。 2008-05-31 10:52:08 補充: 請參照:http://en.wikipedia.org/wiki/Materpiscis 裡面的 This makes Materpiscis the oldest known vertebrate to show viviparity, or giving birth to live...