Remember, you should protect nature and stop cutting down trees, destroying trees and destroying rivers.
Person: Many people are impolite now. People say hello to you, but you ignore them and pass by. We students should say hello when they see the teacher, and some students don't say hello when they see the teacher. There are such students in our class. Let me give you an example. There is an enemy in our class. One is Li Shu, and the other is Ding Lei. I hated each other at first sight, and even went up to hit him. They fight endlessly, no matter who is around. Today, they are quarrelling. Li Shu skinned Ding Lei and shed blood. I went up to stop the fight, but they didn't listen. They have one weakness: they are afraid of Mr. Chen. When Mr. Chen came in, they immediately stopped playing and quickly returned to their seats. Hey! I am such an enemy!
I want them to know that people should live in harmony, not fight because they say something unpleasant.