To save electricity, water use is not about the light in the room.
节约用电，人不在房间里就要把灯熄了。
So I brought what I knew about the light to bear on that problem, and I felt that after a while, the problem of helplessness had come into the light.
所以我运用我所知的光亮去瞄准那个问题，然后我感觉过了一会儿，无助感的问题就走入了光照。
You are right of course about the intense light associated with his daytime paintings.
当然，你是对的——强烈的光线与他白天的绘画有关。
The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
The nearest star to earth is about 4 light years away.
地球离最近的恒星大约为4光年。
There was something strange about the flickering blue light.
那闪烁的蓝光有点儿奇怪。
The plane was flying normally for about 15 minutes before a warning light blinked on.
飞机正常飞行15分钟后警示灯开始闪烁。
I had to feel about in the dark for the light switch.
我得在黑暗中摸索寻找电灯开关。
The light, about one thousandth of the amount needed to read by, is just a start.
光线，大约是阅读所需数量的千分之一，仅仅是一个开始。
I want to go about like the light-footed goats!
我要像步履轻快的山羊一样到处走！
Then she read about seasonal affective disorder, a form of depression that occurs in fall and winter, and she saw the light—literally.
然后她读了关于季节性情感障碍的书，这是一种发生在秋天和冬天的抑郁症；而她真的看到了光。
A joke, a compliment, an engaging discussion about the latest film or book – these things add a little light to the lives of those around you.
一个笑话、一场赞美、一场关于最新电影或书籍的热烈讨论——这些东西在你周围的这些生命上增添一丝光亮。
I am sure you all know from physics class about how light moves in microscopic ways and that we can only see light when the wavelength of that light is in a specific range.
我相信，你们在物理课上都学过光是如何以微观的方式运动的，以及只有在光的波长在特定的范围内时我们才能看到光这一事实。
Last time we talked about photosynthesis, the process by which plants use light to convert carbon dioxide and water into food.
上次我们讨论了光合作用，即植物利用光将二氧化碳和水转化为食物的过程。
In the purply light of dusk the town looked peaceful and happy—enchanting even—and there was an engaging air of expectancy, of fun about to happen.
在紫红色的暮色中，这座城镇显得宁静幸福，甚至是迷人的，空气中萦绕着一种期待的迷人气氛，一种即将要发生的有趣气氛。
You don't think about this type of technology until you see the light go on.
直到你看到灯亮了，你才会想到这类技术。
The designer has tried every possible way to make the robot light, so you needn't worry about its weight.
设计师想尽了一切办法让机器人变轻，所以你不必担心它的重量。
According to a study, about 95% of the people between the ages of 13 and 64 use electronics before bed, especially the young people. Doctors say that the light from those electronics at night may make you excited before you go to bed.
一项研究表明，年龄13至64岁的人群中，约有95%在睡前使用电子产品，特别是年轻人。医生称，电子产品在夜间发出的光可能会让人在睡前感到兴奋。
Learning more about how the light sensitivity of horizontal cells contributes to image vision will require studying whole retinas, not just single cells.
关于水平细胞的感光性如何参与视觉成像，还需要对视网膜而非单个细胞进行更多研究。
The light we emit is about 1000 times lower than the naked eye can see.
我们身体所发的光比肉眼能见的低1000倍。
Instead of writing hymns to hisboss, like many of his peers, he made songs about the soft light in Moscow windows.
他可以不象他的许多同行那样为“大老板”写赞美歌，取而代之的是，描绘莫斯科夜晚的万家灯火。
In a photonic crystal the elements are about the same size as the wavelength of light-a few hundred nanometres (billionths of a metre).
在光子晶体中，其成分与光的波长是同样的大小——几百纳米(一米的十亿分之一)。
But at that time, the light pulses could travel only about 20 meters through the glass fibers before 99 percent of the light had dissipated.
但是在那个时候，光脉冲在玻璃光纤中只能穿行20米，99%的光都被损耗了。
Apart from leftover scraps like Boyle's Law and some bits about the behaviour of light, there was little formal scientific background available to him.
除了波意耳法则和光的行为的残留碎片之外，他就没有什么正规的科学背景了。
The power of a light microscope is limited by the wavelength of visible light, which is about 500 nm.
光学显微镜的放大倍数受限于可见光的波长，大约500纳米。
But if the photographer is thoughtful about how to use the light, magical images can be made.
但如果摄影师肯动脑子，利用光线可以拍出神奇的画面。
This one's about this photographer's vision, about light, about the sense of texture a picture can give you just by looking at it.
仅仅是看着这张照片，它可以体现出拍照者的视野，光线，协和统一的美感。
This one's about this photographer's vision, about light, about the sense of texture a picture can give you just by looking at it.
仅仅是看着这张照片，它可以体现出拍照者的视野，光线，协和统一的美感。
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