alarm bell

基本解释

If we ring the alarm bell, we can move to the solution stage.
如果我们敲响警钟，我们就可以步入解决问题的阶段。
A few dozen rebels stood watching, like firemen waiting for an alarm bell to go off, without any discernible plan about what they might do when it did.
有的叛军就像等警铃的救火队员一样，只是站在那里看，没有任何清晰的计划来组织他们如何应对。
It should have set off an alarm bell, but it didn’t.
他的画本来应该为我敲响警钟，但是我却没有意识到。

So when the fire alarm bell rang, men near the sound of the fire bell dropped what they were doing and rushed out to fight the fire.

We were also surprised to hear one piece of percussion: an old fire-alarm bell.
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