People visit Hangzhou botanic garden in Hangzhou, east China's Zhejiang Province, Feb. 19, 2020. Affiliated parks and scenic spots of the West Lake scenic area have reopened orderly on Wednesday. As a measure of the novel coronavirus prevention, the scenic area has set a limit of the current number of visitors. And all the visitors entering the area are required to wear face masks. (Xinhua/Zheng Mengyu)