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首頁英語詞典oxygenoxygen英英釋意

oxygen

英 ['?ks?d?(?)n] 美['ɑks?d??n]
  • n. [化學] 氧氣，[化學] 氧

英英釋意

1. a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust