现今,在4种泳式中,自由泳游速最快。这是因为与其余3种泳式相比,自由泳游进时,运动员可相对获得较恒定的推进力,且死点少。恰如人们看到的那样,运动员游进 Nowadays, the freestyle swimming speed is the fastest among the four swimming styles. This is because, compared with the other three swimmers, freestyle swimmers can obtain relatively constant propulsive force and have less dead spots. Just as people have seen, athletes swim into