Complaints against the doorman of Tianjin University can be made orally. Complaints about Tianjin University doormen can be made directly to the school complaints office or relevant departments. Tianjin University, called Tianda for short, is located in Tianjin. It is the first batch of national key universities directly under the Ministry of Education of China. It is a national "double-class" construction university, a national "21Project" and "985 Project" construction university, and 10 China Academy of Engineering and Ministry of Education.