这位歌手拥有优美的男中音嗓音，音域宽广而丰富。

The singer has a beautiful ___baritone voice with a rich range.

这位男中音歌手在合唱团中负责中间声部。

The ___baritone sings the middle part in the choir.

这支铜管乐队有两把中音号。

The brass band has two ___baritones.