“三重奏”用英语怎么说？

两小提琴与通奏低音三重奏a trio for two violins and continuo钢琴、双簧管及大管三重奏a trio for piano, oboe and bassoon那位小提琴家走上台,二重奏变成了三重奏组.The violinist walked on the stage and the duo became a trio....