If you teach well, you can make money. Teachers in educational institutions have made a lot of money, but if they go online, there will be a reward mechanism and extra income. In addition, online courses can be recycled and sold, making more money than teachers in offline institutions. But it will be hard. Online education courses are usually held in the evening, and there may be a lot of troubles in recording courses. However, it should be good to do it well. I think the teacher above us earned it.