go off

柯林斯词典

1. PHRASAL VERB If an explosive device or a gun goes off, it explodes or fires. (炸弹) 爆炸; (枪) 开击
A few minutes later the bomb went off, destroying the vehicle. 几分钟后炸弹爆炸了，摧毁了那辆车。
2. PHRASAL VERB If an alarm bell goes off, it makes a sudden loud noise. (警报器) 突发巨响
Then the fire alarm went off. I just grabbed my clothes and ran out. 之后火警响了，我只抓起衣服就跑了出去。
3. PHRASAL VERB If an electrical device goes off, it stops operating. (电气设备) 停止运作
As the water came in the windows, all the lights went off. 随着水从窗户涌进来，所有的灯都灭了。