smoke alarm
US /smoʊk əˈlɑːrm/
UK /smoʊk əˈlɑːrm/
1.
烟雾报警器, 烟感器
a device that detects smoke and sounds an alarm, typically as a warning of fire
:
•
The smoke alarm went off when I burned the toast.
我烤焦面包时，烟雾报警器响了。
•
Every home should have at least one working smoke alarm.
每个家庭都应该至少有一个正常工作的烟雾报警器。