stereo circuit

例句：

1. 1. The new stereo system is much more convenient than the old one.
   新的立体声系统比旧的方便多了。
2. 2.The engineer designed a stereophonic circuit to improve sound quality.
   工程师设计了一个立体声电路来提高音质。
3. 3. The stereo system in the concert hall was so loud that it drowned out the performers' voices.
   音乐会厅里的立体声系统声音太大，把表演者的歌声都淹没了。