General primary school enrollment, the provisions are seven years old and above, so it is not considered to be repeated. Undergraduate graduates are generally 22 years old, with two or three years of college education, and 8+N medical education is not included.

At the age of twenty-five, some people will choose to stay in the army for two years, or some people will delay graduation, so it is not uncommon to graduate at the age of twenty-five.