呼救

wǒ tīng jiàn yǒu rén zài hū jiù

我听见有人在呼救。

I heard someone crying out for help.

yù nàn hū jiù xìn hào

遇难呼救信号

SOS distress signal

qíng kuàng jǐn jí gǎn kuài tōng guò diàn tái xiàng zǒng bù hū jiù

情况紧急，赶快通过电台向总部呼救。

The situation is urgent. We should send radio SOS signals right away to headquarters for help.

jǐng chá yòng wú xiàn diàn lái hū jiù

警察用无线电来呼救。

The police officer radioed for help.