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》

Aunt Emily, who isn't very brave, started to call for help.

不是很勇敢的艾米莉阿姨开始呼叫求助。

youdao

Remember: In case of emergency, it's always important to call for help first!

记住：在紧急情况下，重要的是要先打电话求助！

youdao

They would call for help. And several groups of militia in the area would come to the aid of Harpers Ferry.

VOA: special.2009.06.25

The pan-African meeting is expected to call for substantial financial support from the developed world to help developing countries to adjust to a non-carbon-based economy.

VOA: standard.2009.10.13

Two of the injured occupants managed to escape from the submerged wreckage to call for help.

CNN: STORY HIGHLIGHTS

Get a device (personal emergency response system) your parent can use to call for help if needed.

FORBES: Mom! Look Out, Don't Fall!

She said although she was "too afraid" to call for help, her obvious plight was ignored by passers-by.

BBC: Girl, 14, raped by schoolboy gang