On December 31, 2020, in the series activities of "multi culture and harmonious coexistence" for international students to welcome the new year, Ruan Qiuxia, a 2020 undergraduate from Vietnam, brought the song "rare words" to the audience. This net red song, a collection of dozens of rare words, let many people look back. But this Vietnamese girl, who is just a freshman, sings it all at once, which shows that she has worked hard behind her.