介词短语
中文翻译：在
同义词：
['at the sound of the trumpet', 'at the sound of the alarm', 'at the sound of the whistle']
例句：
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1. The band played a lively rendition of "The Star-Spangled Banner" at thehorn.
乐队在警笛声中演奏了《星条旗永不落》这首激动人心的曲目。
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2. The driver was pulled over by the police for speeding at the horn.
司机因超速行驶被警察拦下，因为是在警笛声中。
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3. The firefighters were called to put out a fire that started at the horn.
消防员被召来扑灭一个从警笛声中开始的火灾。