这同样使声波能量降低，随之带来音调和音高的降低，使得我们自己听到的声音远低于周围人直接听到的声音。
This too causes the waveform to lose energy as well as, in turn, frequency and pitch, resulting in you hearing a distorted, lower tone than what people hear directly from out of your mouth.
韧质材质的PV B膜对声波有很好的阻尼作用，使夹胶玻璃能有效阻挡声音的传播，明显的降低外界环境噪音。
Tough PVB film can well damp sound waves and enable insulated glass effectively hinder sound transmission and definitely lower environmental noise.
她转身向着我，她的声音降低了一个音节，使整个屋子充满了难堪的轻蔑。
She turned to me, and her voice, dropping an octave lower, filled the room with thrilling scorn.
她转身向着我，她的声音降低了一个音节，使整个屋子充满了难堪的轻蔑。
She turned to me, and her voice, dropping an octave lower, filled the room with thrilling scorn.
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