Repetition is mainly to improve their weak subjects, in order to get points. Teachers in ordinary public high schools give lectures according to the situation of high school students, and they are not very targeted to knowledge. Because repeat students mainly review in class, I still suggest going to private schools, which is more targeted. I study at Tufts Education myself. The teachers here are very patient and responsible, and the way of class guidance suits me very well, so my grades are particularly fast this year.