按课堂已讲方向整理的课后复习改进版，主要选取课堂讲解最完整的“运动成功题”进行示范。
Some people believe that great success in sports mainly depends on physical strength and health, while others argue that mental attitude plays a more important role. In my view, both factors matter, but their importance may change according to the type of sport and the gap between competitors.
Physical condition is clearly important in many sports. Athletes with stronger muscles are more likely to perform difficult movements steadily, especially in sports that require speed, balance or physical contact. Endurance also matters, because some matches or races last for a long time. If two players have similar skills, the one with better endurance may still perform well in the final stage, while the other may become too tired to continue. In addition, a healthy body can help athletes adapt to different places, weather and time zones when they compete in other countries.
However, mental attitude can also decide the result, especially when competitors are close in ability. An athlete needs to stay calm after making mistakes, instead of giving up too early. A player who is leading also needs to remain focused, because overconfidence may make them lose control of the match. In team sports, a positive attitude can help teammates encourage each other and recover from temporary failure. Athletes also have to deal with pressure from the audience, the referee and strong opponents, so mental strength is not just about feeling confident; it is about staying stable under pressure.
Overall, physical strength may be more decisive when the gap in ability is very large. However, when athletes are at a similar level, mental attitude can become the key factor. Therefore, sports success should not be explained by only one side.