A truck driver used his CB radio to call for help.

卡车司机用民用波段无线电呼救。

《牛津词典》

The ship sent a message for help by radio.

该船用无线电广播发出求救的信号。

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Most radio and television stations stopped functioning, and the airwaves were only punctuated by a few rare radio appeals for help.

大部分的电台和新闻中断，电波也只能接收到断断续续的求救信号。

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Edlene says,after the earthquake, she went on a local radio station and said I had a four-room place that was available for anyone who needed help.

VOA: standard.2010.03.22

He was still trying to reel in the fish when water rushed into the cabin and flooded the engine room, prompting the captain to radio for help as he yelled out their coordinates.

NPR: US Tourists Survive Ship Sinking Near St. Lucia

Alan in Bramley told BBC Radio Sheffield he wanted to thank Rotherham Council workers for their help after a family funeral was put at risk by the snow.

BBC: Snow closes nearly 300 schools in South Yorkshire

Wireless phones may be able to help commuters across the country who search for traffic reports on the radio, online, and on TV.

NPR: Cell Phones: A New Commuter Tool?