It is easy to change a light bulb, sure, but it is harder to change the bulb and its fixture.
换一个灯泡当然很容易，但是要更换灯泡和其固定装置就比较难了。
Ducky not evade excuses, but want to change a mood life, even change a light reading.
游走不是逃避的借口，而是想换一种心情生活，哪怕是换一个灯光看看书。
How many brewers does it take to change a light bulb? A: One-third less than for a regular bulb.
需要多少名酿酒工？答：换一个常规灯泡所需人数的三分之一。
They say it takes one psychologist to change a light bulb, but he or she needs to want it to be changed.
有人说，一个灯泡只需一位心理学家就能换好，但前提是他/她有更换此灯泡的意愿。
In other words, a change to one of the laser beams affects how both beams interact and how much light gets through.
或者说，改变两光束之一会影响两束光的相互作用以及有多少光可以通过。
By changing the structure of such a crystal slightly, using an electric charge, the colour of the light reflected by that crystal will change too.
依靠轻微得改变晶体的结构，利用电流的改变，当晶体改变时，光的颜色也会相应改变。
Russian experts say that the question of why the mammoth died out may shed light on our own prospects of survival in a world gripped by rapid climate change.
俄罗斯专家认为，全球气候变化迅速，探究猛犸象灭绝的原因可能会让我们进一步明晰我们自己的生存前景。
In trivial processes, the state of a process is unchanged by the invocation of the process. Switching on the light doesn't change the function, potential, or the predictability of the switch.
在零散过程中，使用处理过程不会导致其自身的改变，打开开关并不改变开关本身的功能、潜力或可预测性。
In the presence of a magnetic field, the atoms' orientation changed in a particular way, and this change was detectable in the light that came through the atom cloud, the team found.
小组发现，在磁场之中，原子的方向以特殊的方式发生的变化，而这种变化可以被穿过原子云的光束探测到。
But it's a disservice to constantly put things in this radical new light - that it's going to change everything.
但要是总把事情套在这种激进的新视角中，就有害无益了——那样将改变一切。
In light of such a spectacle, those who highly value the role of ideas in social change are tempted to root for one side or the other.
面对这么宏大的场面，那些在社会变化中发挥思想作用的人被引诱去站队。
However, the upside to this story is the light that comes out of the darkness, something I would say is a change of pace from Inarritu's two previous films, Babel and 21 Grams.
然而，这个故事的积极一面在于追求黑暗中的光明，这在我看来有别于导演的前两部电影《巴别塔》和《21克拉》。
Those reared in summer conditions kept to a daily routine, but those brought up in little light struggled to cope with the change, the journal Nature Neuroscience reports。
根据《自然神经科学》杂志的报道，那些在夏天的光照条件下成长起来的老鼠像往常一样作息，而那些在缺少光线的环境中成长起来的老鼠在应对这一变化时却显得吃力。
The change sets us back to mid-January in terms of morning light, according to Michael Terman, a biological rhythms expert at Columbia University.
根据来自哥伦比亚大学（Columbia University）的生物节奏专家MichaelTerman的 观点，就从早晨的日光这个角度来说，这种时间的调整把我们带回到了1月中旬。
Like a magician using a complex set of mirrors to hide his tricks, a invisibility cloak USES materials that change the shape of light so that it moves around an object, hiding it from view.
就像魔术师通过一组复杂的镜子来隐藏他的戏法，隐身斗篷利用特殊材料改变光的形态，使光线绕过物体，从而使物体在人们的视线中消失。
Nearsightedness associated with cataracts in the center of the lens is often classified with the pseudomyopias, but it is actually a permanent change in the way light focuses in the eye.
与发生于晶状体中心白内障相关联的近视被归于假性近视一类，但它确实且永久地改变了光线在眼内聚焦的方式。
The team took electrical readings from single isolated retinal horizontal cells. They found that light caused a change in electrical current in cone horizontal cells but not in rod horizontal cells.
研究小组对单个视网膜水平细胞进行了电子扫描，发现光引起了锥状细胞中电流的变化，而在柱状细胞中则无此反应。
Those opposing action on climate change understand this well and frequently use images of electric light at night in their publicity as a metaphor for excitement, civilisation, and progress.
那些反对环保行动的人深知这一点，经常在他们的宣传中使用夜晚电灯的形象，作为兴奋、文明和进步的隐喻。
The space-time ripples cause the distance measured by a light beam to change as the gravitational wave passes by, and the amount of light falling on the photodetector to vary.
时空涟漪使得用光束测量的距离像引力波通过那样变化，同时使得落在光电探测器上的光量发生变化。
Just imagine if changing the light in your room requires you to change the switch also. Would you care to purchase and set up such a system in your house?
想想一下，如果改一下房间里的灯同时需要改开关，你会乐意在你房子上花钱并安装这个系统吗？
In that sense, the change from serious drama to light comedy may be a wise move, given that Felicity currently follows Dawson's Creek, Hour of Teenage Angst, on the WB's schedule.
在这种意义上看，走从严肃的戏剧到轻喜剧的转变可能是个明智的一步。考虑到本剧跟随的是《恋爱时代》，《焦虑青春时刻》，现在按照华纳的日程表上的路线。
Today, I was stopped at a traffic light when a mid-aged homeless woman asked me for change.
今天，当一个无家可归的中年妇女向我乞讨的时候我在红绿灯前停下了。
One can witness a slightly yellower change in the color of the dog's skin, but to the naked eye, fluorescence cannot be seen without the presence of UV light and goggles.
人们可以看到狗的皮肤颜色稍微变黄，但对于肉眼而言，荧光在没有紫外光照射和未使用护目镜时不会被看到。
This requires a lot of math, fueled by an algorithm they created to constantly change the barrier's orientation to let light pass in a variety of ways.
这需要大量的数学计算，辅助以独特的算法，专为持续改变屏障取向以多种方式通光而设计。
As the light zooms around, you'll see the picture drastically change before your eyes, with even subtle movements making a world of difference.
当光线在鸡蛋周围移动时，你可以看到你眼前的图像发生了多么大的变化，即使是非常细微的移动也使得画面发生巨大的改变。
As I stood on the corner of 86th street and 2nd avenue waiting for the light to change, I saw a crowd gathered across the street.
我站在86号大街和2号大街的拐角处等红灯变绿，我看见一群人穿过了大街。
The real change will happen when the library turns into a server room, and access to all of its books will be available on a light and usable touch tablet.
当整个图书馆都存储在服务器上，我们在轻便易用的触屏电脑上阅读资料，这才是变革的开始。
The real change will happen when the library turns into a server room, and access to all of its books will be available on a light and usable touch tablet.
当整个图书馆都存储在服务器上，我们在轻便易用的触屏电脑上阅读资料，这才是变革的开始。
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