完整原文
Last summer, I participated in a community charity walk to raise funds for a local children's hospital. First, we gathered at the city square early in the morning, and volunteers quickly divided into groups to collect donations. Then, we walked along the main street for three kilometers, sharing cheerful stories and handing out flyers to passers-by. However, although the weather was hot, our team members supported each other until we finally reached the finish line. In conclusion, this experience taught me the true value of teamwork and giving, so I will definitely volunteer again next year.