后台-系统设置-扩展变量-手机广告位-内容页头部广告位 英音 [‘naitridʒən] ; 美音 [‘naitridʒən] ; 不可数名词: 1.氮 英语解释 a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues 后台-系统设置-扩展变量-手机广告位-内容页底部广告位1