Well, it goes with the speed of light, so in t seconds, it moves a distance cT.

它以光速前进，所以在T秒内，它前进了cT的距离。

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And so when you actually have a device the bits don't flow at the speed of light in reality.

因此，当你拥有一个设备,数据位并不能以现实中的光速传输。

哈佛公开课 - 计算机科学课程节选

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