Staff members check school buses to prepare for the new semester in Hongze district of Huai’an city, East China’s Jiangsu province, Feb 24, 2018. [Photo/Xinhua]

A parent buys books for her child at a bookstore to prepare for the new semester in Suzhou, East China’s Jiangsu province, Feb 24, 2018. [Photo/Xinhua]

A staff member checks the lights of school buses to prepare for the new semester in Hongze district of Huai’an city, East China’s Jiangsu province, Feb 24, 2018. [Photo/Xinhua]

A staff member cleans school buses to prepare for the new semester in Hongze district of Huai’an city, East China’s Jiangsu province, Feb 24, 2018. [Photo/Xinhua]