A teacher shows how to wear the mask during class at Chunhui High School in Shaoxing, east China's Zhejiang Province, April 13, 2020. The eastern Chinese province of Zhejiang on Monday partially reopened schools, with a total of 977,000 senior students in junior and senior high schools resuming classes in classrooms, as the novel coronavirus epidemic wanes in China. (Xinhua/Weng Xinyang)
