master·class
noun/ˈmɑːstəklɑːs/
/ˈmæstərklæs/
- a lesson, especially in music, given by a famous expert to students with a lot of skill
（大师授课的）高级音乐讲习班；深造班 - The opera star gave a masterclass to a group of young singers.
歌剧明星给一群年轻歌手上了一堂大师课。
- The opera star gave a masterclass to a group of young singers.