The following is the school holiday date arranged by the Municipal Education and Sports Bureau. Basically, at the beginning of the semester, teachers can know the holiday time of this semester, which is convenient for teachers to arrange teaching plans as a whole. But this year, we have a problem. At the beginning of this semester, the Education and Sports Bureau arranged the class time for this semester to be 2 1 week. Last week, we were informed that the class time was changed to 20 weeks this semester.