In the spring morning, when the sun just rises, Xiaoming and his father go running in the park. The willows in the park germinated, and the willows hung down and fluttered with the wind. As soon as they entered the park, they ran in tandem. For a while, Dad ran fast, and for a while, Xiaoming caught up with Dad. They ran sweating profusely. Tired of running, they sat on the stone bench and enjoyed the beautiful scenery while resting. The air in the park is so fresh! Xiao Ming and his father agreed to come to exercise often in the future.