After studying for half a year, I feel that no one is helping you train. Usually, you sit in front of the computer and teach yourself. Then go to a foreign teacher's class in a week or two. It's not worth the expensive tuition. Moreover, their most overlord clause is that as long as you pay. No matter what reason you can't go to class, I'm sorry, but the tuition is non-refundable. This is what I suffered. At first, I heard from the salesman that applying for multiple courses at one time could save a lot of money, and at that time, I really planned to continue studying, so I paid 50 thousand at one time and studied for more than three years. But after studying for half a year, I was suddenly sent abroad by the company, and then I discussed with people on Wall Street to see if I could refund part of my tuition, but they refused to give me half a cent. Because time was tight, I discussed it with them again. If the money can't be refunded, I might as well transfer the remaining three years of my course to my friends without wasting it, but they still don't want to. Now, I haven't discussed a result with them. Therefore, I advise all students that when you want to take these classes, you must ask clearly before you can pay.