Lin is a very kind girl. She is always ready to help people who are trouble. Now Lin is studying in the University of Texas. At the same time, she volunteers (teach) at Heart House in her free time. Heart House is a local after-school study program for children. It provides some extra(额外的) (educate) for children who are not doing (good) in school. Lin goes to Heart House to teach the children (two) a week. She also makes a website for Heart House. In this way, people will learn more Heart House and better help the children there. (thank) to Lin's website, every week 125 volunteers spend two hours helping the children at Heart House now. " Lin's website, Heart House would never be able to have enough volunteers," the program leader says. "I feel happy to teach those kids to study. I won't give up (volunteer). I hope to continue teaching kids who need help." Lin says.