You may start to notice an underwater wave that brushes your knees while doing the dolphin kick.
你会注意到一个水下波刷你的膝盖，当我在海豚式打腿。
The dolphin kick and body undulation exercises simply teach you how to learn the technique described above.
海豚式打腿练习和身体的波动只是教你怎么学技术前述。
The butterfly kick is also known as the dolphin kick since it is similar to the movement of a dolphin tail.
蝶泳的打腿还有一个常见的俗名，即海豚踢。这是因为这种打腿方式和海豚尾巴的运动方式非常相似。
The most physically demanding stroke, the butterfly features the simultaneous overhead stroke of the arms combined with the dolphin kick.
对身体条件最苛求的泳姿，蝶泳的特色是两臂同时越过头顶结合海豚式打腿。
Some people have it easier to learn the dolphin kick and body undulation than others, and it seems that girls learn this motion faster than boys.
有些人把它易于学习海豚式打腿和身体的波动，似乎比其他女孩比男孩学习这个动作快。
Butterfly: a stroke made in the prone position where both arms are lifted simultaneously out of the water and flung forward, in combination with the dolphin kick.
蝶泳：一种泳姿。即采用俯卧姿势，双臂同时在水面之上前挥划水，结合身体做海豚式打水。
So that's it, these are the 11 drills to learn the body undulation and dolphin kick!
原来如此，这些都是11演习，学习身体波动和海豚踢！
You can use a dolphin kick for either freestyle or butterfly, but for the start, remember to use a smaller, faster dolphin kick.
你可以在自由泳和蝶泳(入水后)打蝶泳腿，但在刚开始的时候，一定记住蝶泳腿要做到幅度小、速度快。
Before you get to the bad part of the recovery, you still have to milk all that momentum by staying as tight as possible after you've finished your pulldown and dolphin kick.
如果不想搞砸后面的蛙手恢复动作，你就要在完成划水和海豚腿后尽可能地通过保持绷紧来获得所有的冲力。
Who knows... if you've always had trouble moving forward with your dolphin kick, maybe you're not making the right connection with the water and this little trick can help.
谁知道呢？……如果你在做海豚式打腿时，总是不往前走，这也许是因为你没有掌握好人与水的关系。
We often refer the butterfly kick as the body dolphin. To emphasize rhythmic action of the legs and feet, find the origin in the body's core.
我们通常把蝶泳打腿称作海豚泳(海豚腿)强调腿和脚有节奏的律动，来自身体躯干的中心发力。
Try several lengths, then take off the fins and try a few lengths of your favorite swimming activity that requires a dolphin kick.
试试不同长度的练习，然后取下脚蹼之后做几个你喜欢的的用动作，但动作里面需要有海豚腿的动作。
The kick is a simultaneous thrust of the legs called a "frog" or breaststroke kick. No flutter or dolphin kicking is allowed.
蹬腿就是两条腿同时蹬出，称之为“蛙”式腿或蛙泳腿，蹬腿时采用交替式打水或海豚式都是不允许的。
Then, kick your legs up and down together in a whipping motion generating from the hips and bending at the knees, as if you were a dolphin.
通过髋关节和膝关节用力运动，上下踢你的腿，就像海豚一样。
From the side, you can see it's basic dolphin kick... but as Kevin rotates his body toward the camera, you'll notice the distinct outside-in motion of his legs.
从侧面看，这不过是一个基本的海豚式打腿，……但当凯文转过身来，面对镜头时，你将注意到，他的两腿从外向内的动作非常明显。
From the side, you can see it's basic dolphin kick... but as Kevin rotates his body toward the camera, you'll notice the distinct outside-in motion of his feet.
从侧面看，你可以看到海豚式打腿…但是最基本的身体当凯文轮换向镜头，你会注意到不同outside - in运动他的脚。
From the side, you can see it's basic dolphin kick... but as Kevin rotates his body toward the camera, you'll notice the distinct outside-in motion of his feet.
从侧面看，你可以看到海豚式打腿…但是最基本的身体当凯文轮换向镜头，你会注意到不同outside - in运动他的脚。
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