She collaborated with Mr. Smith to produce operettas.她与史密斯先生合作创作小歌剧.He wrote thirteen more operettas, of which the best known is Dler Zigeunerbaron ( The Gypsy Baron ).他还写了另外13部轻歌剧, 其中最著名的是《吉普赛男爵》.Gradually, he became kn...

n.轻歌剧，小歌剧( operetta的名词复数 )...

operettas的音标：...