These devices use rope-like material to carry movement from the shoulder to the prosthetic arm.
VOA: special.2009.03.10
Movement down a concentration gradient occurs fairly rapidly over short distances like a micron or so, like the size of a bacterium.
顺浓度梯度扩散在一微米左右的短距离内,相当迅速,一微米相当于一个细菌的大小
Most sports and activities like running and cycling are very one-dimensional movement patterns, so you're,
大部分运动和活动,像跑步和骑车,都是很单一类型的运动,所以你,
Even though some defenders of that particular movement claim it didn't happen, like David Brooks tried to claim in The New York Times.
尽管一些参与这些运动的人辩护,说事实并非如此,如戴维·布鲁克斯在《纽约时报》的文章
Do you feel like there's a movement?
你觉得这里面有没有社会运动?
The first crowd to do stuff like that, you will find, in the fifth century B.C. In Greece is a movement called the Sophistic Movement.
你们会发现第一批做这种事情的人,是在公元后五世纪的希腊人,当时兴起了一种叫诡辩的运动
It might bend and bow, that is it's not the forces of nature like the movement of the river that's knocking the bridge down, but it's just the failure of these materials over time, that they don't last as long as they might.
这桥可能会折断,不一定是洪水这样的自然灾害,导致了桥梁的坍塌,可能只是因为建桥的材料老化,这种材料没有那么持久耐用
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