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1. Oxford Dictionary

   oxygen

   • IPA[ˈɒksɪdʒ(ə)n]

   英式

   • n.
     a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

   • noun: oxygen

2. • 釋義

   n.

   名詞

   • 1. a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. if breathing stops, there is no oxygen getting to the brain and the cells begin to die hydrogen and carbon in the fuel combine with the oxygen in the air to form carbon dioxide and water