Teachers simulate the students to enter the campus in line during a drill at a primary school in Hanshan District of Handan, north China's Hebei Province, May 31, 2020. Hanshan District conducted drills in primary schools simulating the steps of temperature measurement, disinfection of campus and emergency treatment of students with abnormal body temperature to ensure teachers and students can return to school in a safe and orderly manner. (Xinhua/Wang Xiao)
