And this is another fly kick drill where you kick on the right side going over.
这是另一种打腿练习。你游过去时向右侧身打腿。
The only place the fly kick is not a plus for most swimmers is in the 50-yard freestyle.
对于大多数游泳者来说，海豚腿唯一没什么用的地方就是50码自由泳比赛。
It does not matter whether you swim long course or short course, you must learn to swim with the fly kick under water.
无论你是游长距离的还是游短距离的，都必须学会水下蝶泳腿。
This enables somebody who is the beginner of the fly kick to keep their feet under water and feel pressure the whole time.
这个练习可以使初学蝶泳打腿的人做到两脚保持在水下，并时时感受到水的压力。
Ian: "One important thing to remember when you doing this fly kick on your back drill is to have the correct range of motion."
伊恩：“做仰蝶打腿练习时最重要的是要保持正确的动作幅度。”
If you kick the ball hard enough for the airflow over the surface to become turbulent, then the drag force remains small and the ball will really fly.
如果你踢球的力量足够大，使得球表面的气流形成湍流，则阻力会很小，你很可能踢成高射炮。
So if you need 9 kicks in a 200 fly race, kick 11 times off every wall during fly practice.
这样如果你在200米的比赛中需要9次打腿，那么在每次练习时都需要打11次。
Arsenal will play a Malaysia XI in Kuala Lumpur on Wednesday (kick-off 8.45pm local time) and then fly to Hangzhou in China to play Hangzhou Greentown on Saturday evening (kick-off 7.30pm local time).
阿森纳将在当地时间下周六晚7点30和杭州绿城队进行一场比赛。
Arsenal will play a Malaysia XI in Kuala Lumpur on Wednesday (kick-off 8.45pm local time) and then fly to Hangzhou in China to play Hangzhou Greentown on Saturday evening (kick-off 7.30pm local time).
阿森纳将在当地时间下周六晚7点30和杭州绿城队进行一场比赛。
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