警笛

tū rán wǒ tīng dào jǐng dí zài hòu miàn xiǎng qǐ lai

突然我听到警笛在后面响起来。

Suddenly I hear a siren behind us.

jǐng dí shēng huá pò le yè wǎn de níng jìng

警笛声划破了夜晚的宁静。

Sirens pierce the silence of the night.

yī gè jǐng wèi zhèng zài chuī jǐng dí

一个警卫正在吹警笛。

A guard was blowing his whistle.