Well, if the school charges teachers, teachers can certainly defend their rights, and teachers can be the first to pass, that is, to report, for example, to the Education Bureau. In this way, they can also safeguard their rights and interests. Of course, they should keep good evidence when defending their rights, because in this way, they can protect their rights and interests, protect all their safety and protect their property. Therefore, when talking about the classroom, after retaining the evidence,