oxygen基本解释
n,氧气，[化学]氧,同近
oxygen相关例句和用法The human brain needs to be without oxygen for only four minutes before permanent damage occurs..人脑缺氧只需4分钟就会造成永久性损伤。
oxygen英英释义[化学] 氧气，[化学] 氧英释nna 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
oxygen短语oxygen content,氧含量，血氧含量.短语
