孙欣是北京大学中文系2004级本科生,政府管理学院2009级研究生,在北大的7年时间里,她和同学创立了北大剧星大赛,如今已经成为北大人气火爆的年度校园赛事;她担任中文系学生会主席期间,促成了《新秋之歌》的诞生,这首歌随后成为中文系系歌;研究生毕业前,她参演了北京大学学生会拍摄的电 Sun Xin, a 2004 undergraduate student of Peking University’s Department of Chinese Studies and a 2009 graduate of the School of Government Administration, was the student of Peking University for the first time in seven years at Peking University. She has now become a popular annual campus event at Peking University. She has served as During the Chinese Department of Student Union chairman, contributed to the “New Autumn Song” was born, the song then became Department of Chinese Department song; graduate before graduation, she participated in the Peking University student union filmed electricity