名词
中文翻译：高音喇叭同义词
同义词：
['high-pitched horn', 'loudspeaker']
例句：
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1. The police used a loudspeaker to alert the public about the fire.
警方使用扩音器向公众通报火灾情况。
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2. The band played a high-pitched melody on their concert stage.
乐队在音乐会上演奏了一段高亢的旋律。
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3. The loudspeakers were set up at the entrance of the stadium to broadcast the game results.
体育场入口安装了扬声器，用来播放比赛结果。