推广班 meaning in Chinese

extension class

The public performance in this end of year specially arranges outstanding students of promotion class to perform five classical selected plays which appeal to every levels : " lan - ke - shan ? later force " , " iron crown drawing ? killing tiger " , " jiaoxiao story ? writing an indictment " , " peony pavilion ? visiting a garden " , " peony pavilion ? startling dream " to display their achievements of study for many years , and lead viewers to see the deep of kun opera art
本次岁末公演，特安排推广班优秀学员担纲演出雅俗共赏的五?经典折子戏《烂柯山?后逼》《铁冠图?刺虎》《鲛绡记?写状》《牡丹亭?游园》《牡丹亭?惊梦》，展现多年习艺的成果，同时引领观众一窥昆剧艺术的堂奥。