fire alarm

US /ˈfaɪər əˌlɑːrm/
UK /ˈfaɪər əˌlɑːrm/
"fire alarm" picture
1.

火警, 火災報警器

a device that makes a loud noise to warn people of a fire

:
The fire alarm went off, and everyone evacuated the building.
火警響了,所有人都撤離了大樓。
Always check if the fire alarm is working properly.
務必檢查火警是否正常工作。