oxygen
US /ˈɑːk.sɪ.dʒən/
UK /ˈɑːk.sɪ.dʒən/
名词
1.
氧气
a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air. Oxygen forms oxides with most elements and is a constituent of proteins, nucleic acids, carbohydrates, and lipids. It is released by plants during photosynthesis and is used by animals in respiration.
示例:
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Humans need oxygen to breathe.
人类需要氧气来呼吸。
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The divers carried tanks of compressed oxygen.
潜水员携带压缩氧气罐。
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