Graduated normally, 22 years old. From the age of 6, primary school needs to study for 6 years, and middle school needs to study for 6 years. Universities have different academic systems according to different majors, generally ranging from 4 to 5 years, and just graduated at the age of 22. A university is an institution of higher education that provides teaching and research conditions and authorizes the conferment of degrees. It is also an institution of higher learning that inherits, studies, integrates and innovates advanced academic knowledge, and is interrelated with socio-economic and political institutions. Universities are mainly developed from Germany, Britain and other countries, and their competitiveness mainly includes the quality of teachers, students, hardware facilities and so on. This is the basis for the survival, development and social responsibility of universities.