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oxygen ['ɔksidʒən] US UK
听 写(核心) 3210人查过,632人收藏
n. 氧气
noun
a gas that has no colour or smell, is present in air, and is necessary for most animals and plants to live. It is a chemical ELEMENT : symbol O
氧,氧气〔一种化学元素,符号为 O〕
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