Classmate, anyway, I always think that one-on-one classes are expensive, but it's really a waste of money, so I can't help it. In the first half of the summer vacation, I found a fairly good one-on-one school (Gauss Mathematics). Compared with other places, their fees are relatively low, which I think is not worse than other places. I think the learning atmosphere there is much better than other schools. If I want to improve my grades and save some money at the same time, I will always go there this summer.