Friends and children, the official version of high school math English is still valid. The classmate said that he thought he had an idea to solve the problem. Instead of obsessing over a topic, it is better to find the real reason why you can't do it and fill in the loopholes and weak links in knowledge. I think it's ok. At least English and math. I don't know about other subjects

Specifically, if it is a free trial, you can try it. It's free anyway. Give yourself another chance.