This activity is no charity but a viable business, servicing people who do not have access to electricity.

VOA: standard.2010.02.24

But in hard drives where we actually have these moving platters, here is in fact, how we get from electricity and magnetism to those zeros and ones.

但是在传统硬盘中我们确实有高速运转的磁盘，这就是事实，但问题是我们如何,把电磁信号转化为0和1的。

哈佛公开课 - 计算机科学课程节选

Your computer works on wires and electricity but your brain uses tissue and tissue is extremely slow.

你的计算机依靠电线与电流而得以运行,但你的大脑应用的则是组织,而组织的反应则是相当缓慢的

耶鲁公开课 - 心理学导论课程节选

LEDs produce as much light as incandescent light bulbs but consume only 10 percent of the electricity and last many times longer.

VOA: standard.2009.12.13

But officials say electricity is still being supplied to the region through nearby power plants.

VOA: standard.2010.07.21

But there's an important difference between Europe and America: electricity in the U.S.

VOA: standard.2010.02.23

But the silicon is what converts light into electricity, so you might think using so much less silicon would reduce the electrical output, but Atwater says that's not the case.

VOA: standard.2010.02.19