烟雾触发了火警报警器。
谁拉响了火警报警器？
烟雾触发了火警报警器。
大家应该知道最近的火警报警器在什么位置，还有火灾发生时安全出口在哪，火门在哪。
Everyone should know where the nearest fire alarm box is located and where exits fire escapes, and fire doors are.
我正走近办公室，这时火警报警器响了。
I was coming close to the office when the fire alarm sounded.
人们认为火警报警器响是个恶作剧。
It was thought that the fire alarm had been set off as a prank.
就在那时，火警报警器突然发生巨响。
启动最近的火灾报警器——如果您在走廊里，在走廊的每一个紧急出口附近都设有报警器，敲碎报警器玻璃后按下火警报警按钮。
Open the nearest fire alarm. If you are in the corridor, there is a fire alarm near the emergency exit, break the glass of the fire-alarm push the fire alarm button.
火警报警器响个不停。
火警报警器响个不停。
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