siren

n. /ˈsaɪrən/ B2

警报器；汽笛

A piece of equipment producing a loud sound as an emergency warning.

仙境例句

The Queen's shout was louder than a siren, and the whole pack of cards jumped.

王后的叫喊比警报声还响，整副纸牌都吓得跳了起来。