There are still a few cicadas singing in twos and threes on a few trees on the playground, and their voices are no longer loud. It is already the end of summer, and the sun in early September is not too harsh. The big letters of No. 7 Middle School are shaking in the sun so that people can't open their eyes. Freshmen are coming and going, dragging their luggage, and some middle-aged people are leading their children and pouring into the school. People are coming and going, it is very lively. After putting away their luggage, everyone walked to the playground in unison.