It's not easy to take. The standard of national second-class athletes is high, which requires athletes to have a high level of sports. Paddle is not easy to learn and control, so it is not easy to take the national second-class athletes. Paddling is called Stand Up Paddle in English, or SUP for short. This is a water sport that is popular all over the world. There are many ways to participate, such as still water, surfing, whitewater, racing and rowing yoga.