一般常见的游泳姿势有自由泳、蛙泳、仰泳和蝶泳,此外还有侧泳和潜泳等。自由泳也叫爬泳。我们常说的“狗爬式”就很像自由泳。据说,自由泳是1890年前后由英国人特拉金首先采用的。六年后在第一届现代奥运会上列为正式比赛项目。奥运会男子自由泳的比赛有100米、200米、 Common swimming positions are freestyle, breaststroke, backstroke and butterfly stroke, in addition to side swimming and diving and so on. Freestyle is also called a crawl. We often say that “dog crawling” is very much like a freestyle. It is said that freestyle was first adopted by Englishman Trakkin around 1890. Six years later in the first modern Olympic Games as a formal event. Olympic men's freestyle competition is 100 meters, 200 meters,