I heard it on the radio.

我从收音机里听到了这件事。

《牛津词典》

I heard it on the radio this morning.

我今天早上在收音机上听到的。

youdao

I heard the news over (or on) the radio.

我从收音机里听到了这一条消息。

youdao

" They just opened up fire on us. I heard the captain saying on the VHF radio we are unarmed."

VOA: standard.2010.06.03

"I was driving my child to school and on the radio I heard the police were making arrests in relation to a conspiracy against the government, I was shocked when they said I was one of those to be arrested, " journalist Nedim Sener tells the BBC, sitting with his wife in his apartment after a long spell in jail.

BBC: Turkey's press continues to feel pressure from the state

Ms. LATIFAH: I got a little swooped up the first time I heard my record on the radio, I mean, that was exciting.

NPR: Queen Latifah on New HBO Movie 'Life Support'

Ms. COX: I remember, when they've debuted it on the radio, and I heard it, and it just was, you know, it's like, wow, Joe Sample has a great hit on his hand.

NPR: A Jazz Single Sees One Man Through