airwaves

1. N-PLURAL The airwaves is used to refer to the activity of broadcasting on radio and television. For example, if someone says something over the airwaves, they say it on the radio or television. 無線電波[journalism]

The election campaign has been fought not in street rallies but on the airwaves. 這場競選大戰不是在街頭集會中進行，而是在無線電波中交鋒。