广播，在播送中...

on the air的音标：on the air的英式发音音标为：[ɔn ðə eə(r)]on the air的美式发音音标为：[ɑn ði er]...

She is going on the air as presenter of a new show.她即将上电视主持一档新节目。We shall be on the air in 5 minutes.过五分钟我们开始广播.She is singing on the air.她正在广播歌曲....