We know exercise is important in our life. Everyone needs to do exercise. Doctors say doing sports is good for us. Sports can make our body healthy. It's very useful for children, too. It can make children clever. This means they will do well in study and schoolwork. There are easy ways to exercise. You can walk, run, or only jump. When you do exercise, you need to know what you are doing. Don' t do sports too much at a time. Try all kinds of sports and look for one, two or even three sports you like. You can also exercise at the gym (健身房). Exercise can be fun. It can make you happy. Friends can exercise together at a gym or they can do sports together at any place they like.