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Breaststroke 蛙泳
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. The history of breaststroke goes back to the Stone Age. The leg action of the breaststroke may have originated by imitating the swimming action of frogs.
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。蛙泳的起源可以追溯到石器时代。蛙泳中腿部蹬水的动作很可能是模仿青蛙的泳姿而来。
