be on air
US /bi ɑn eər/
UK /bi ɑn eər/

短语
1.
播出, 直播
to be broadcast on radio or television
示例:
•
The show will be on air live at 8 PM.
节目将于晚上8点现场直播。
•
The news report is about to be on air.
新闻报道即将播出。
在 Lingoland 学习这个单词
播出, 直播
to be broadcast on radio or television