名词
中文翻译：火警警报器
同义词：
['fire alarm', 'fire whistle']
例句：
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1.The fire siren went off as soon as the fire broke out.
火灾一发生，火警就响起了。
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2.The fire siren was a constant reminder of the dangers of fire.
火警声不断提醒人们火灾的危险。
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3. The fire siren woke us up from our sleep and alerted us to the danger.
火警声把我们从睡梦中唤醒，让我们警觉到危险。