More than the class size. According to the official website, Hangzhou Education Bureau. As of August 2023 1, Hangzhou Education Bureau stipulated that the number of pupils in each class should not exceed 50 in principle, and the maximum number should not exceed 55. Top-level admission refers to the number of people who are re-admitted on the basis of not more than 50 people in principle, that is, some classes have more than 50 people, but each class does not exceed 55 people at most.