Although we talked about Vitamin D and sunlight, it can make a huge difference in how you feel if you go to a tanning salon to get some light on your skin.
尽管我们已谈到维生素D和阳光，但是如果你刻意去参加日晒沙龙来摄取阳光到皮肤的话，它会让你感觉到巨大的差别。
We're going to use this imaginary train to get as close as possible to the speed of light and see how it becomes a time machine.
虚构的火车以接近光速的速度行驶，它如何变成一个时间机器呢？
Actually, that's what we do in available-light photography: look for the interesting light, then figure out how to use it to make an interesting picture.
事实上光线不好的时候拍摄照片就是要这样做——寻找有趣的光线然后思索如何利用光线拍摄出一幅有趣的照片。
How much does it cost to change a light bulb?
更换一个灯泡到底需要花费多少钱？
Find out your plant’s foot-candle requirement, which is how many candles it would take to light the plant from one foot away.
找出植物所需要的“英尺烛光”，即在一英尺的距离需要点多少蜡烛来提供它光。
"I wanted American professionals to look at my application and shed some new light on how I could make it better," she said.
陆景瑜(音)说道：“我希望能有美国留学专家帮我精炼一下我的申请，给我一些如何将申请做的更好的建议。”
Or, more commonly, you might look at social network data and attempt to parse trends from it, such as how often your company is mentioned and whether it's mentioned in a positive or negative light.
或者，更常见的情况是，您可能需要检查社交网络数据，试图解析该数据，了解某种趋势，比如您的公司被提及的频率，以及这种提及是正面的还是负面的。
How is it that no matter how tight you close the shutters of light bulbs, flies or other insects manage to get inside?
为什么不论你怎么关灯，苍蝇和其他的昆虫总是能够想方设法的进到你的家里来？
How many people does it take to change this light bulb? None.
有多少人曾经换过这个灯泡？一个也没有。
That puts puns in contrast to, say, a riddle about how many psychiatrists it takes to screw in a light bulb.
这就把双关比作一个问“装上一个灯泡需要多少精神病医生”的谜语。
However a digital camera doesn't have the smarts to make these adjustments automatically and sometimes will need us to tell it how to treat different light.
然而数码相机不会做这种自动调整，所以经常需要我们来告诉相机如何处理不同的光源。
HOW long does it take to change a light bulb?
需要多长时间来改进一个灯泡？
How many designers does it take to change a light bulb?
要花多少设计师来改变一支灯泡？
If you find that you are always the last one to ture off the light in your office, it is high time you thought over seriously how you could avoid being the last one.
如果办公室里每天晚上最后一个关灯的人都是你，不如认真考虑一下：怎样才能不做最后一名？
Question: How many capitalists does it take to screw in a light bulb?
问题：装电灯泡需要多少个资本家？
Intel did not have to invent anything new, but it did have to work out how to make small, cheap versions of the converters that turn electrical signals into light and vice versa.
英特尔不需要发明任何新东西，它只要想办法使电子信号和光信号之间的相互转换更小巧便宜。
How many people does it take to change this light bulb?
有多少人曾经换过这个灯泡？
The relationship between the amount of light an incandescent bulb can produce and how long it will last is complicated, to say the least.
退一步说，一盏白炽灯能产生的亮度与其照明寿命之间的关系很复杂。
The foam wasn't a very good insulator (in other words, not useful to him at the time), but he was impressed by how light and strong it was.
这种泡沫的隔热能力并不是很好(换句话说，在当时并不能让他满意)，但是他却发现这种泡沫材料非常轻又非常坚韧。
The makers consulted with a live-action director of photography, Roger Deakins, to learn how Deakins would light and shoot a scene if it were a live-action movie.
制作人员请教了真人电影的摄影导演，罗杰·迪金斯，以了解如果这是一部真人电影，迪金斯会如何安排某一场景的灯光并进行拍摄。
It may not be possible, in the light of the fact that no one knows exactly how WIMPs will behave in reality, to directly compare these experiments.
这可能是不可能的，在事实没有人确切知道将如何懦夫的行为在现实中，直接比较这些实验的光。
Correct understanding of a few Expect basics-how to invoke it, its dialogue model, its programming AIDS, and so on-shines a light on its enormous potential in system and network administration.
正确地理解有关Expect的一些基本知识(如何调用它、它的对话模型、它的编程辅助，等等)，以便在系统和网络管理工作中更充分地发挥它的作用。
In light of news of Rupert Murdoch's goons hacking dead people's phones in England, you might be wondering about just how easy it is for people to snoop on your voice mail. It's very easy.
在Rupert Murdoch的英国公司雇员入侵死者电话的新闻轰炸下，你可能会感兴趣到底入侵一个人的手机去窃取语音信息有多容易，答案是非常容易。
The ultraviolet light could make it possible to determine how long ago oil had washed up in a given region, Kirby said.
Kirby说，紫外线能用来确定油污被冲到某一特定区域的时间。
How, through music and friendship, it can bring light and warmth to a cold, dark life.
而透过音乐，友情等人性中的温暖，能为灰暗的人生带来光明。
HOW many inventions does it take to change a light bulb?
每当人类变革一次灯泡需要多少位发明家？
HOW many inventions does it take to change a light bulb?
每当人类变革一次灯泡需要多少位发明家？
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