Train carriages undergo repairs at an intermodal maintenance workshop in Erenhot, Inner Mongolia autonomous region, June 5. The workshop overhauls international passenger trains and redirects bogies from Beijing to Moscow, Beijing to Ulaanbaatar, and Hohhot to Ulaanbaatar. Due to an increase in passenger train operations, staff members at the Erenhot workshop must work hard to guarantee the safe operation of cross-border trains to a high standard. [Photo/Xinhua]