oxygen
/'ɒksәdʒәn/
高考四级考研托福常用词汇
BNC词频: #3,719
当代词频: #3,839
中文释义
n. 氧
[化] 氧O-2
英文释义
n. 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