It usually takes five years for a juvenile class to graduate from a doctor. If you add four years of undergraduate major, it will generally be nine years. The academic system of juvenile classes is no different from other universities, which is four years (of course, some excellent students can graduate early in just three years). Students in the junior class are studying for doctoral degrees, and juniors also apply to participate in the summer camp of the target university, striving for excellent campers, and seniors strive for insurance research and promotion qualifications. Those who meet these two conditions can basically study for a doctorate.