A teacher (R, back) practices to explain proper handwashing steps during a rehearsal in a school of Xingtai City, north China's Hebei Province, April 2, 2020. Schools in Xingtai City have carried out rehearsals for class resumption of students in their final year of senior and junior high schools, to make sure a safe and orderly school opening with rigid epidemic prevention measures. (Xinhua/Mou Yu)
