大多数游泳运动员，特别是蛙泳运动员在水下的停留时间过长，除了蛙泳之外，手臂在呼吸之前就要开始划水了。
Most swimmers, and in particular breaststrokers, stay under water too long. Other than in breaststroke, arm stroking should begin before a breath is taken.
应用设计的装置实测了一些运动员在自由泳和蛙泳时的动态阻力和阻力系数。
The active drag and hydrodynamic force coefficient were measured for athletes swimming both freestyle and breaststroke.
混合泳接力赛中，每位运动员以一种姿势游一定的距离，顺序依次是仰泳、蛙泳、蝶泳和自由泳。
In medley relays, each swimmer swims one stroke for the set distance; the order is backstroke, breaststroke, butterfly and freestyle.
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