Tianjin Yuxian Primary School. According to the official inquiry of Tianjin School, Four Seasons Village of Tianjin University corresponds to Yuxian Primary School in Tianjin. Tianjin, also known as Jingu and Jinmen, is a provincial-level administrative region, municipality directly under the Central Government, national central city and mega-city of People's Republic of China (PRC), and is the economic center of the Bohai Rim region determined by the State Council.