It was a sunny weekend afternoon and my friends and I decided to go for a ride in the park. We rode along the path around the lake and enjoyed the beautiful scenery. However, at this moment, I suddenly discovered that my rear tire was flat. So we all got out of the car and planned to find a nearby car repair shop. However, we walked along the lake for about half an hour without finding a car repair shop. At this time, a friend of mine suddenly remembered that he had learned how to repair a bicycle, so he decided to use local materials, his own tool box and some items found in the park, to try to repair my bicycle. We found a thick branch and some wire. My friend first removed the tire and then made a makeshift tire tool out of the branch and wire. He cleverly slipped the tool over the tire and secured it with wire. Then, he slowly pointed the tire valve at an air pump and began to inflate my tire.