打开App
如何才能让我们游的更快？
游泳过程中，想要获得更快的速度需要做到增加推进力！但在水中的阻力大于在空气中的阻力，所以在增推的同时也要做到减小水对身体的阻力！
爱上游泳喽321/786
App01:51
App01:17
App02:44
App02:25
App01:48
App01:18
App01:32
App01:24
App02:20
App01:42
App01:45
App01:22
App01:08
App01:45
App01:23
App02:04
App02:27
App01:34
App01:58
App01:57
App01:20
App01:54
App02:12
App02:27
App01:39
App01:32
App01:38
App01:55
App01:25
App01:29
App01:32打开App观看
