band constant

例句：

1. 1. The band played a beautiful song for the audience.
   乐队为观众演奏了一首美妙的歌曲。
2. 2. He tied a band around his wrist to keep it from slipping off.
   他系了一条带子在手腕上，以防它滑落。
3. 3. The band members are all skilled musicians.
   乐队成员都是熟练的音乐家。