我还不知道如何有效地进行蛙泳。
蛙泳的历史追溯到石器时代。
他会游蛙泳、仰泳和自由泳。
由于没有教练以及不甚了解如何照顾自己，我受伤了，开始游泳（蛙泳）来保持健康。
Without a coach and enough knowledge about how to take care of myself, I got injured and started to swim (breaststroke) to keep fit.
前一分钟我们的潜水员还在太平洋里用脚蹼游水，下一分钟他就在300英尺高空的一个救火水桶里做蛙泳了。
Last minute our diver was still swimming in the Pacific with flippers, and the next minute he was doing a breaststroke in a fire bucket 300 feet in the air.
自由泳、蝶泳、仰泳和蛙泳是游泳比赛中常见的四种泳姿。
Freestyle, butterfly, back stroke and breast stroke are four commonly seen strokes in swimming competition.
她花了几个小时练习蛙泳。
蛙泳的腿部动作可能是模仿青蛙的游泳动作而来。
The leg action of the breaststroke may have originated by imitating the swimming action of frogs.
单腿蛙泳练习历来是世界级优秀蛙泳选手的最爱。
Single-Leg Kick has been a favorite drill of some of the world's greatest breaststrokers.
你猜对了，前一分钟我们的潜水员还在太平洋里用脚蹼游水，下一分钟他就在300英尺高空的一个救火水桶里做蛙泳了。
You guessed it. One minute our diver was making like Flipper in the Pacific, the next he was doing a breaststroke in a fire bucket 300 feet in the air.
由于没有教练以及不甚了解如何自我照顾，我受伤了，开始游泳(蛙泳)来保持我的水平。
Without a coach and enough knowledge about how to take care of yourself, I got injured and started to swim (breaststroke) to keep fit.
当晚的另一项世界纪录属于卡梅罗·范德·伯格，他在50米蛙泳中游出了最好成绩。
The other world record of the night went to Cameron van der Burgh who set a new best in his 50m breaststroke semi-final.
蛙泳是竞技游泳的四种标准泳姿中最慢的一种，但它却是公认最难做得标准的一种。
Breaststroke is the slowest of the four official styles in competitive swimming, but it is commonly agreed that it is by far the most difficult to do correctly.
挪威选手莎拉·诺尔登斯坦在周五举行的女子200米蛙泳比赛中摘得了一枚奥运会的铜牌，小巫师哈利·波特起了很重要的作用。
Boy wizard Harry Potter played an important part in Norwegian swimmer Sara Nordenstam's bronze in the women's 200 breaststroke at the Beijing Olympics on Friday.
初学者也许能很容易地掌握蛙泳、自由泳或仰泳，但蝶泳却难得多，对游泳者的技术要求很高。
While other styles like the breaststroke, front crawl, or backstroke can be swum easily even by beginners, the butterfly is a more difficult stroke that requires good technique to be feasible.
另外一次就是在比赛出发点我发现我是少数没有穿连体泳衣的人之一，是唯一用蛙泳姿势游完1.9公里的。
The other was at the race start, when I realized I was one of the few without a wetsuit and the only one doing the entire 1.9km swim (1.2 miles) with a breaststroke.
最大限度地发挥每个动作的功效是蛙泳的基本要点，无论你是12岁还是52岁。
Getting the most out of every stroke is essential in breaststroke, whether you're 12 or 52.
我最喜欢的，也是我认为最有功效的一个垂直练习，就是垂直蛙泳。
One of my favorite, and I think most functional vertical drills , is vertical breaststroke work.
我们提倡大家做更多的水中练习，而不只是简单的蹬壁出发后就开始蛙泳。
It encourages more roll than if you'd simply pushed off the wall and started to swim breaststroke.
接力游泳的顺序是仰泳、蛙泳、自由泳。
The order of relay is backstroke, breaststroke, butterfly, and freestyle.
走到开始游泳水下蛙泳。
游泳既是竞赛运动又是娱乐。主要游泳姿式有爬泳、仰泳、蛙泳和蝶泳。
Swimming is both as a competitive sport and recreation. The principal swimming strokes are the crawl, backstroke, breaststroke and butterfly.
记住，如果你领先你的对手进入自由泳阶段，然后在前五次划臂是多用劲儿的话，那么当你开始冲刺的时候，你的对手们确还在疲惫地游着蛙泳。
Remember, if you get to the freestyle before your competitors and attack the first five strokes, you are swimming sprint free while they are swimming tired breaststroke.
她在400米混合泳接力赛中游的是蝶泳，但其实立大功的还属蛙泳和自由泳段。
She swam the butterfly leg on the 400-meter medley relay team, but it was really the breaststroke and freestyle legs that made the difference.
很多一流的蛙泳选手都有一些共性的东西。
Many of the best breaststrokers in swimming have several things in common.
这可能需要你游一会蛙泳，或者踩水，或者漂浮一会。
This may require doing some breaststroke, or even treading water or floating for a little while.
他会游蛙泳、仰泳和自由泳。
他会游蛙泳、仰泳和自由泳。
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