n.男最高音；女最低音；中音部
adj.中音部的
It is a combination of the tenor and the alto. 这是男高音和女低音的组合。
She began by singing soprano, then changed to alto. 她开始唱的是高音，后来转为中音。
用作形容词 (adj.)The alto sax player showed he's got the goods, too, when he did his solo. 中音萨克斯手在独奏时也秀出了绝活。
n.[化]麦芽糖
n.高层云
altostratus的复数
