它们的海马组织充满了新生神经元,数量远远超过了不运动的那些动物。
Their hippocampal tissue teemed with new neurons, far more than in the brains of the sedentary animals.
在研究了短跑运动员的解剖结构信息后,他们发现这些运动员的足部和那些经常不运动的人的足部不一样。
They have looked at the anatomy of sprinters and found that their feet are built differently from those of couch potatoes.
It was impossible-- doctors and scientists showed, runners, athletes, the top-ones in the world proved that the doctors were right.
那是不可能的,医生和科学家证明了,跑手,运动员,世上顶尖选手证明了医生们是对的。
when other people that might not have been involved with the sport wouldn't really know what to do.
而或许没参与过这项运动的人连做什么都不知道。
That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.
这就解释了为什么我们不担心,原子核运动起来,因为原子核和电子的质量比约为2000:
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