四声道的

例句：

1. 1. The audio equipment has fourchannels for stereo sound.
   音频设备有四个通道用于立体声。
2. 2. The movie was recordedin four-channel format.
   这部电影以四通道格式录制。
3. 3. The speaker system supports four-channel audio playback.
   扬声器系统支持四通道音频播放。