上低音大号，次中音号一种类似于大号的铜管乐器，但具有较高的音度和。

A brass wind instrument similar to the tuba but having a somewhat higher pitch and a mellower sound.

youdao

上低音大号，次中音号一种类似于大号的铜管乐器，但具有较高的音度和。

A brass wind instrument similar to the tuba but having a somewhat higher pitch and a mellower sound.

youdao