短语词组短语Bass s Tuba 低音大号BTB bass tuba 低音大喇叭;低音年夜喇叭Bass Tuba in Bb 大号double bass tuba 倍低音大号;倍高音大号;倍高音小号double e bass tuba 倍低音大号Bass Tuba in Eb 大号 返回 bass tuba