When the first grade started, my mother bought me a new schoolbag. After the first grade, the new schoolbag has changed beyond recognition.
In the second grade, I had to buy a new schoolbag. When the schoolbag was bought back, the grandmother next door saw it and said, "My little granddaughter often recited it in primary school. Now that she is in junior high school, I will give it to you if it is too small! " I took the bag and looked at it. It's almost the same as the new one, but the color is a little lighter. I thought to myself: if I carry my newly bought schoolbag one month after school starts, I will carry this old schoolbag next time, and by the time school starts next year, this schoolbag will still be brand-new. I was the same in the third grade, because the new semester is a new beginning and everyone wants to give people a new feeling.
Suddenly came to the fourth grade. The day before school started, I took out my new schoolbag and looked at it. It is almost as good as new. Seeing that other students buy new schoolbags as soon as school starts, I can not buy new schoolbags with my back every semester. I have used these two schoolbags for three years. I don't think my primary school needs to buy books anymore.
I call on my classmates to use this method. Keeping the old schoolbag from last semester and using it alternately with the new schoolbag can also be regarded as energy saving and environmental protection, and can also save parents' expenses.