为什么运动后用冷水洗澡不好？
为什么运动员们都记得帕弗•努尔米？
这就是为什么运动员每天都要花费许多时间来练习基本的技巧。
It's why athletes spend many hours a day practicing fundamental skills.
研究人员称：现在还不确切知道为什么运动会引起这样的实验室异常结果。
It is not known for sure why exercise can elicit such strange lab results, researchers say.
大伙儿，这可不是包裹在金箔纸里的金币巧克力，奥运会金牌是货真价实的金属制品，那为什么运动员热衷于咬金牌?。
It's not a chocolate coin wrapped in gold foil, people. That's actual metal that composes that Olympic medal, so why do athletes bite them?
当你运动的时候，你的大脑会分泌一种叫脑内啡的化学物质，这种化学物质会让人感到愉快，这是为什么运动对人有益的另一原因。
When you exercise, your brain releases chemicals called endorphins. This chemical makes you feel happier. That is just one more reason why exercise is good for you.
但是，他说，对双胞胎所做的另一个研究表明，手指长度主要受遗传因素影响，这可以解释为什么运动能力强的父母生的孩子运动能力也较强。
But he said it had been found in a separate study of twins that finger length was largely inherited, possibly explaining why sporting parents often have sporting children.
但是，他说，对双胞胎所做的另一个研究表明，手指长度主要受遗传因素影响，这可以 解释为什么运动 能力强的父母生的孩子运动 能力也较强。
But he said it had been found in a separate study of twi that finger length was largely inherited, po ibly explaining why orting parents often have orting children.
你不得不问自己为什么人们像旅鼠一般盲目排长队来参加这项奇怪的运动。
You have to ask yourself why people line up, like lemmings, to take part in this peculiar sport.
水银是一种液态金属，而水星这颗行星，是肉眼能看到的运动最快的天体。火星，为什么火星是红色的？
Mercury is a liquid metal, and mercury, the planet, is the fastest moving naked eye heavenly body. Mars, why is Mars red?
为什么足球运动员平均薪水50万美元还总是发牢骚呢？
Why are football players griping when the average salary is half a million dollars?
你是个什么样的人，你想成为什么样的人：智力如何，创造力如何，社会能力如何，运动能力如何？
What kind of person are you and what kind of person do you want to be: how intellectual, how creative, how social, how athletic?
迈克尔为什么带他的孩子去看残疾跑步运动员（比赛）？
Why did Michael take his kids to watch the disabled runners?
为什么竞走运动员是有条件的运动员？
注册应用程序后，运动日志会问你为什么要锻炼。
After you sign up in the app, RunKeeer will ask you why you are exercising.
你为什么不邀请杰瑞明天早上去操场做运动呢？
Why don't you invite Jerry to play sports in the playground tomorrow morning?
我没看到有什么不同，这也是为什么我感觉终于找到一种合适自己的运动。
I don't, and that's why I feel like I've finally found a sport just for me.
他表示：“当在办公室里能就餐、做运动和玩乐，为什么还要回家呢？”
Why would you go home when you can have meals, take exercise and enjoy fun in the office?
每当有重要运动比赛来临时，人们不可避免地大量讨论为什么一些国家表现良好，而另一些国家表现糟糕。
INEVITABLY, when it comes to a major sporting event, there's lots of discussion about why some countries do well and others badly.
水银是液态金属，水银，行星，是肉眼能看到的运动最快的天体，火星，铁，为什么火星是红色的？
Mercury is a liquid metal, and mercury, the planet, is the fastest moving naked eye heavenly body. Mars, iron, why is Mars red?
但我认为这还是一个很有意思的例子，解释为什么我们要掌握向量的方法去分析运动。
But, still I think it's a very interesting example of why you might want to use vector methods to analyze motions.
当然，机器人会玩体育运动并不稀奇。但这种发明让我们又一次想起一个被回避的问题：为什么我们不买一个或两个机器人放在家里呢？
Sure, robots have been playing sports for ages, but seeing this here creature revived begs the question: why don't we all have one or two of these laying around the house by now?
他说，重要的是要弄明白这些人为什么以及什么时候感染艾滋病的，这样公共卫生宣传运动才能更有的放矢，以达到预防感染的目的。
He says it is important to understand why and when these people are becoming infected. That way public health campaigns can be better targeted to prevent such infections.
那就解释了为什么会他们做环形运动。
幼年蝗虫相互蚕食的趋势是一种可能性.这一点也被认为是为什么它们会结队前进的原因.它们通过不断的运动以避免成为同伴的盘中餐,当然也成为了行进路线发生突然改变的一大诱因.
This is believed to be why they march in crowds. By keeping on the move they avoid becoming a meal for a neighbour—surely a powerful incentive for a sudden change of direction, too.
幼年蝗虫相互蚕食的趋势是一种可能性.这一点也被认为是为什么它们会结队前进的原因.它们通过不断的运动以避免成为同伴的盘中餐,当然也成为了行进路线发生突然改变的一大诱因.
This is believed to be why they march in crowds. By keeping on the move they avoid becoming a meal for a neighbour—surely a powerful incentive for a sudden change of direction, too.
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