So the point on the edge must rotate much faster to cover that 50 in. in 1.8 seconds than the point near the center, which has to cover less than a fifth of the distance in the same time.
因此，边缘上的点每1.8秒必须比中心的点多转50英寸，使它不得不在同样的时间里覆盖不到五分之一的距离。
The point is that for some time the center of gravity for achievement has been shifting away from the topmost colleges.
值得强调的一点就是在某段时间内，成功的重力中心从顶尖的学校发生了转移。
The point is that for some time the center of gravity for achievement has been shifting away from the topmost colleges.
值得强调的一点就是在某段时间内，成功的重力中心从顶尖的学校发生了转移。
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