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  1. hydrogen

    • IPA[ˈhaɪdrədʒən]

    美式

    英式

    • n.
  2. 知識+

    • comprise的用法

      ...would like to suppose as the following: Water is mede of hydrogen and oxygen. [ hydrogen oxygen 構成之後各自不在 ]

    • 英文翻譯....這段我看不懂

      ...have gained momentum as a viable alternative to alkaline electrolysers for hydrogen generation especially from renewable energy sources. 在過去幾年裡,SPE...

    • 英文高手請進

      ...10. Organelle - 細胞器 11. Oxygen or hydrogen - 氧或氫 12. Planet earth and of its inhabitants...