People attend a theme event celebrating the 70th anniversary of the founding of the People's Republic of China (PRC) in Zhejiang University in Hangzhou, east China's Zhejiang Province, Sept. 26, 2019. Various events launched by the All-China Youth Federation were held on Thursday across the country to express good wishes to Hong Kong and celebrate the 70th anniversary of PRC's founding. (Xinhua/Han Chuanhao)