HKUST's remedial classes, such as Wendeng, Haitian, Pilotage, Sailing and Wenhai, are not much different from what I observed. To be honest, it doesn't matter much whether the students do well in the exam. Those who really did well in the exam were all reviewed by themselves. The remedial classes are concentrated in high-intensity classes for a period of time, regardless of students' acceptance ability. However, the tutorial class can let you skim the knowledge in a short time, which is good. So ... . . . You can sign up at any time to see which is the cheapest. A little earlier and a little later doesn't make much difference. It will be much cheaper to seize the opportunity to engage in activities. I was a sophomore at that time, and I had a rest for more than a year before I officially took classes. Some students only applied during the summer vacation from junior year to senior year.