“伴音”怎么读

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我们家的电视出现了伴音过小的故障.There is something wrong with our TV, the sound is too low.调频比调幅更适合于传送立体声、电视节目的伴音信号.FM is also Better able to transmIt'sounds in stereo than AM.木梁的吱吱声成了井水的伴音.Squeak coming from wood beams becomes se...