It's true. Beijing Fuhui Education is a formal training company with its own official website. Teachers are very good at teacher-student interaction, and every class is very happy, which belongs to that kind of happy learning. And if you don't understand anything, ask the teacher directly, and the teacher will explain it patiently and gently. Call customer service if you have any questions, and the customer service will answer them quickly. The after-sales service is very good.