ˈfire aˌlarm ●●○ noun [countableC] TBBDHa piece of equipment that makes a loud noise to warn people of a fire in a building 〔建筑物内的〕火警钟,火警报警器 We were in the middle of an exam when the fire alarm went off. 我们的考试正进行到一半,这时火警报警器响了。
Someone set off the fire alarm. 有人触响了火警报警器。
fire alarm went off• The fire alarm went off that evening - Tuesday, November 24.