smoke detector

US /ˈsmoʊk dɪˌtektər/
UK /ˈsmoʊk dɪˌtektər/
"smoke detector" picture
1.

烟雾探测器

a device that detects smoke, typically as an indicator of fire

:
The smoke detector went off, alerting us to the fire.
烟雾探测器响了,提醒我们发生了火灾。
Every home should have at least one working smoke detector.
每个家庭都应该至少有一个正常工作的烟雾探测器