Is there a charge for watching videos in synchronous classes?

Yes, it's the first time to open a new user, and there is no charge for the first month. If it continues to be used later, it will be charged according to 10 yuan/month/paragraph and collected by the mobile company. If the synchronous classroom service is not opened, it will not affect the use. They can still do problems and tests, but they can't watch the video explanation of children's mistakes. In fact, the charges for synchronous classes are mainly videos.