名词
中文翻译：Unknown
同义词：
['alerthorn', 'caution horn', 'alertbell']
例句：
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1. Thewarning horn was sounding loudlyin the distance.
远处传来了响亮的警报声。
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2. The police warned everyone to stayindoors during the storm.
警察警告大家在暴风雨期间待在室内。
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3. The driver used hiswarning horn to alert other drivers ofthe impending collision.
司机用警笛提醒其他驾驶员即将发生的碰撞。