on-air

US /ˌɑːnˈer/
UK /ˌɑːnˈer/
"on-air" picture
1.

播出, 直播

being broadcast on radio or television

:
•
The show went on-air at 7 PM.
节目于晚上7点播出。
•
The reporter was live on-air from the scene.
记者在现场进行直播。
:
livebroadcastingon the airtelecastingradiocasting
:
airbe on airairingair conditionerair pollutionair conditioningair force