名词
中文翻译：Unknown
同义词：
['echo', 'reverberation', 'resonator']
例句：
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1. The sound of the echoes from the cave walls was eerie.
洞穴墙壁上的回声听起来很诡异。
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2. The engineer designed a resonator to improve the sound quality.
工程师设计了一个共振器来提高音质。
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3. The musician used a reverberation pedal to add depth to his performance.
音乐家使用延迟踏板来增加他表演的深度。