Light pollution, or "sky glow", is the glow you can see at night above cities and towns.
光污染，也称“人工白昼”，在夜晚的城镇上空均可见到这种发光现象。
Night scenes which contain artificial light sources should almost always have low-key histograms, otherwise these will have significant blown highlights.
带有人工光的夜景几乎总有暗调子的情况(即low - key直方图)，否则就会出现明显的高光反差(blownhighlight)。
It's a warm, breezy Saturday night and she wants to find a place outdoors with sufficient light so she can sit and read the novel she's grasping in her right hand.
这是一个温暖的、有微风吹拂的周六夜晚，她想找一个户外的地方，有足够的光线就可以，她可以坐下来读一读右手中的小说。
Moreover thou leddest them in the day by a cloudy pillar; and in the night by a pillar of fire, to give them light in the way wherein they should go.
并且白昼用云柱引导他们，黑夜用火柱照亮他们当行的路。
To further complicate focusing, night scenes rarely have enough light or contrast to perform auto focus, nor enough viewfinder brightness to manually focus.
夜景不便自动对焦，因为没有足够的光线或者鲜明的对比，而若手动对焦，取景器亮度又不够，这些使得夜间摄影的对焦更为复杂。
The scientists observed that the tetras that normally spend time in the light do sleep soundly at night, resting on the bottom of their tanks.
科学家观察发现，接触阳光时长正常的鱼类在晚上会在鱼缸底部睡得很安稳。
Scientists have known for a long time that the light of day and the dark of night play important roles in setting our internal clocks.
科学家们很久以前就发现，昼夜光线的变化对于设置生物钟起着重要的作用。
Then, one night in 2001, I saw the light: We have to deduct, not to add, these costs to obtain the solution.
二○○一年的一个晚上，我看到曙光：我们不是要加，而是要减这些费用，才能得到解答。
By day the Lord went ahead of them in a pillar of cloud to guide them on their way and by night in a pillar of fire to give them light, so that they could travel by day or night.
日间，耶和华在云柱中领他们的路；夜间，在火柱中光照他们，使他们日夜都可以行走。
If no one shows a light, if in the dark stormy night everyone shuts their doors.
如果没有人给你一线光明、如果在风雨交加的深夜每家每户都紧闭房门。
And the LORD went before them by day in a pillar of a cloud, to lead them the way; and by night in a pillar of fire, to give them light; to go by day and night.
日间，耶和华在云柱中领他们的路，夜间，在火柱中光照他们，使他们日夜都可以行走。
Reading is a kind of feeling, in the long night after the light. Reading is a kind of habit, enjoying the time in time.
阅读是一种感悟，在漫漫长夜里追寻着光明。阅读是一种习惯，在时光流逝中品尝着光阴。
Day and night would each be exactly 12 hours long on a spring or fall equinox only if the sun were a single point of light and Earth had no atmosphere.
如果想要昼夜在春秋分日达到精确地12小时等长，除非太阳是个单点光源或者地球上没有大气层。
[Laura Fonken et al, Light at night increases body mass by shifting the time of food intake]
[劳拉·范肯等，《夜间灯光通过改变进食时间增加体重》]
Photographers showed either the beauty of the night sky or the immensity of light pollution from cities.
摄影师们既展示了夜空的美，也揭露现今城市严重的光污染现象。
A third volunteer walked at night by the light of the moon. When it was obscured by clouds, he made several turns and ended up heading in the direction he came from.
第三个志愿者在夜晚伴随着月光行进，当月亮被云朵遮盖时，他绕了几个弯，最终还是走到了他原来的地方。
"The old moon in the new moon's arms" is nothing but that part of the moon's surface on which it is night, lighted up by earth light.
新月抱旧月“只不过就是月球表面上正处于黑夜的那一部分被地球的反射光反照的结果。”
First, they don't meet in the daytime; they meet either early before light, at dawn, or after dark, at night.
首先，他们不在白天聚会，要么在天亮前的黎明，要么在天黑后的夜晚。
Dutch citizen Else Leegte said her husband's company called them last night, telling them to pack light and get to the airport.
一名荷兰籍公民ElseLeegte说她丈夫的公司昨天晚上打电话给他们让他们稍微带点东西赶紧上机场去。
If the sun were just a tiny point of light and Earth had no atmosphere, then day and night would each be exactly 12 hours long on a spring equinox day.
如果太阳只发出很小一点的光，并且地球周围不存在大气层，那么在春分这天，昼夜等长，都是12个小时。
In theory, you'll gradually get sleepy about 20 minutes earlier each night, and you can facilitate the transition by avoiding extra light exposure from computers or televisions as you near bedtime.
从理论上讲，每天晚上你会比前一天提前20分钟感觉到睡意，为了增强效果，临睡前应该避免电脑、电视等发出的亮光。
The stars stand at the highest point of sky so as to light the night sky.
为了照亮夜空，星星才站在天空的高处。
The horizontal perimeter of clerestory glazing is a driving architectural element in the new building, providing light during the day and emitting a glowing band of light at night.
玻璃天窗的水平周界是新建筑的一个最充满活力的建筑元素，它白天可提供日光，而在晚上则成了一条发光的光带。
As the fall of night ignites thousands of lanterns along the riverbanks and set off the sunset glow, the whole town become ablaze with light and illuminates the way home for its residents.
夜幕降临，河岸边数千盏灯笼与晚霞一并点燃，把整个小镇映衬得灯火通明，为镇民们照亮了回家的路。
And they found that mice that were exposed to even dim light at night were chubbier than mice who spent their evenings in the dark.
他们将小鼠的笼子照亮，经观察后发现，即使是暴露在昏暗灯光下的小鼠也要比在黑暗中活动的小鼠身形圆润。
Avoid BRIGHT LIGHTS - if you wake up in the middle of the night and can't get back to sleep within 30 minutes, get up but avoid as much light as possible.
避免强光—如果半夜醒来后30分钟内不能再次入睡的话，干脆起床，但一定尽量避免强光。
God put these lights in the vault of heaven to give light on earth, to govern day and night, and to separate light from darkness; and God saw that it was good.
上帝把日月星辰置于天穹之中以照亮大地，司昼夜、分明暗。上帝见如此很好。
Night photography is subject to the same set of constraints as daylight photography - namely aperture, shutter speed and light sensitivity - although these are all often pushed to their extremes.
夜间摄影与白天摄影受到同样条件的约束——即光圈，快门速度，感光度——不过它对于这些参数的控制都要达到极致。
They hunt at night, and cannot use light to help them find prey and avoid obstacles.
它们在夜间捕食，不能利用光线帮忙找到猎物和躲避障碍物。
They hunt at night, and cannot use light to help them find prey and avoid obstacles.
它们在夜间捕食，不能利用光线帮忙找到猎物和躲避障碍物。
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