This means staggering the peak time of school opening during the holidays. According to the relevant information, primary school, junior high school, senior high school, graduating class and other different grades or special grades start at different times. For example, the third year of high school is expected to be March 3, the third year of high school is March 10, and the primary school is March 16. This is called peak shifting. Organize students to start school in batches and stagger time and space. This is the meaning of peak shifting, which can reduce the danger.