Walters真的担心起来，他用无线电发了呼救信号，地面接线员接到信号并自此和他一直保持联系。

A clearly worried Walters used his CB radio to transmit a mayday call, which was picked up by operators on the ground who then maintained contact with him throughout the flight.

youdao

我们在无线电里收到了呼救信号。

We picked up signals for help on the radio.

youdao

我们在无线电里收到了呼救信号。

We picked up signals for help on the radio.

youdao