1 ADJ [ADJ n] （吉他等乐器）原声的，自然声的，不用电传音的 An acoustic guitar or other instrument is one whose sound is produced without any electrical equipment. （吉他等乐器）原声的，自然声的，不用电传音的
2 N-COUNT （空间的）传声效果，音响效果 If you refer to the acoustics or the acoustic of a space, you are referring to the structural features which determine how well you can hear music or speech in it. （空间的）传声效果，音响效果
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In this performance, Rattle had the acoustic of the Symphony Hall on his side.
这场演出中，拉特尔有交响乐大厅出色的音响效果做他的后盾。
3 N-UNCOUNT 声学 Acoustics is the scientific study of sound. 声学
4 ADJ 声音的;听觉的 Acoustic means relating to sound or hearing. 声音的;听觉的
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...acoustic signals.
声音信号
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