It's lunch time again. I queue up for lunch in the restaurant as usual. Just as I just sat down with a spoon, I heard a conversation between two students. I turned my head and saw a sweaty student with a red face, holding a basketball in one hand and a meal in the other, and said to a student who was sitting in his seat, "Don't eat lunch, let's play ball with us." But the classmate sitting in the seat shook his head. The sweaty classmate was a little angry. He poured all the food he hadn't eaten into the leftovers bucket and walked away ... This is not the only example of wasting food: some students ate a little hastily and then threw it away; Some haven't eaten at all!