It works by sending a series of electrical impulses which are picked up by hi-tech sensors.

它通过传输由高技术传感器收集的电脉冲而起作用。

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Once you have started the boulder rolling, it develops momentum, which is defined by its mass and velocity.

一旦你开始让巨石滚动，巨石就会产生动量，这是由其质量和速度决定的。

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It is required by law to shut down banks which it regards as chronically short of capital.

法律规定要关闭资金长期短缺的银行。

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The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot.

VOA: special.2010.02.03

It's a huge book which is all about this short story by Balzac, "Sarrasine," that he begins this essay by quoting.

这本大部头的书都是在讲巴尔扎克的短篇小说《沙拉辛》的，在文章开头他引用道。

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It must struggle against events which would help to achieve its goal too rapidly--by a kind of short-circuit.

它会在危险中挣扎,因为危险会太早把它带到终点。

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But instead of targeting the growth factor, it blocks the receptor by which it VEGF attaches to cells.

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Shrapnel -- as indiscriminate when it lands as the means by which it is fired -- hit the back of his head.

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It can take weeks to get the results, by which point it's challenging to find the patient and their disease status might already have changed.

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