Each of us has helped others and has been helped by others. There is one thing that I still remember.

That was the math final exam last semester. When doing the problem of drawing line segments, I opened the pencil case to get a ruler, only to find that I forgot to bring my ruler. I was very anxious and thought: What should I do? Without a ruler, I don't know how many centimeters this line segment has been drawn. It's not a pity that I don't do such a simple topic. Seeing that there is not much time left, I see that other students are trying to do problems and writing with pencils from time to time. My mind is blank and I am about to cry. Just when I was in a hurry, my deskmate Zhu Yixin seemed to see through my mind and asked me, "What's wrong with you?" I told her I didn't bring a ruler. She lent me her ruler immediately after listening. After I borrowed a ruler, I felt much calmer. I quickly did the problem of drawing a line segment, and the rest seemed much simpler, so I took the time to finish the test paper. When the teacher announced the results, I got a high score. I was very happy. I am very grateful to Zhu Yixin for his help.

This little thing taught me that no matter how big or small things are, for those who are in trouble and need help,