上低音

例句：

1. 1. The singer's voice was so powerful that it could be heard from a distance.
   歌手的声音如此有力，以至于从远处都能听到。
2. 2. The orchestra played a beautiful piece of music with a strong high and low bass.
   管弦乐队演奏了一首优美的音乐，高低中音都十分出色。
3. 3. In the concert hall, the conductor used his upper and lower bass to guide the audience through the performance.
   在音乐会厅里，指挥家利用他的高音和低音来引导观众完成演出。