竞技游泳就是要不断的追求更快,更有力,更有效。在这项运动的早期,通过改进游泳技术,减少阻力,用新的训练方法来提高运动量,使运动员身体条件更好,效率更高。因此,在20世纪的前80年,世界记录不断地被打破。随着游泳运动员的效率越来越高,世界范围内的交流越来 Competitive swimming is to continue the pursuit of faster, more powerful and more effective. In the early stages of the sport, athletes improved their physical condition and efficiency by improving swimming techniques, reducing drag, and using new training methods to increase their physical activity. Therefore, in the first 80 years of the 20th century, world records have been continuously broken. With the increasing efficiency of swimmers, more and more exchanges around the world