I think understanding is very important for us. One day, when I was playing on the playground, suddenly a tall boy knocked me down. He hurried to get his basketball back.
Though I felt painful, I didn't say anything bad to him. He said sorry again and again to me, and helped me up. From then on, we got to know each other, and became good friends.
Understanding is a bridge between each other. With understanding, the world will become warmer and warmer.