在大约10万年的时间里，当海水退去，世界各地的气候变得更加极端：白天更暖和，夜晚更凉爽；夏天更热，冬天更冷。
Over a period of about 100,000 years, while the seas pulled back, climates around the world became dramatically more extreme: warmer days, cooler nights; hotter summers, colder winters.
虽然人类在白天能看到更多明亮的颜色，但猫在夜晚的视力更具优势。
Whereas human are able to see more bright colours during the day, cats have the advantage when it comes to night vision.
大多数人似乎在夜晚的早些时候会做更多的噩梦，在快醒来之时逐渐做一些更快乐的梦，这表明他们正在克服白天产生的消极情绪。
Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated during the day.
她跳着舞蹈，不得不在牧场上跳、在草地上跳、在雨里跳、在阳光下跳、在白天跳、在夜晚也跳——晚上是最可怕的时候。
She danced and had to jump on the ranch, on the meadow, in the rain, in the sun, during the day, and at night-the most terrible time.
对汤姆来说，白天是光辉灿烂、欢欣鼓舞的日子，而夜晚则是恐怖的时刻。
Tom's days were days of splendor and exultation to him, but his nights were seasons of horror.
那些是金色的白天和芳香的夜晚！
在白天，他和他的朝臣们都变成了狮子，但是到了夜晚，他们又会变回原来的样子。
By day he and all his court were lions, but in the evening they took their right forms again.
考虑到夜晚也可以生存，并且可供选择的白天的“交易”完全被占用，它们自然选择偏爱那些成功在夜间进行捕食“交易”的蝙蝠。
Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, natural selection has favoured bats that make a go of the night-hunting trade.
它的主题是“火”；在明亮的火光下，西昌夜晚的天空和白天一样明亮。
Its theme was "fire"; at night the sky over Xichang was as bright as that in the day with the light fire.
他们白天滑雪速行，夜晚安营扎寨。
During the day they travelled swiftly, at night, they pitched their tents.
她跳着舞蹈，不得不在牧场上跳、在草地上跳、在雨里跳、在阳光里跳，白天跳、夜晚也跳——晚上是最可怕的时候。
She danced and was obliged to go on dancing over field and meadow, in rain and sunshine, by night and by day - but by night it was most horrible.
有时，面对着地球的是“白天半球”，其它时间则是“夜晚半球”：这就是我们为什么只能阶段性地观察月球。
Sometimes, the side facing the Earth is the day side, and other times it is the night side: this is why we observe moon phases.
既然因为我们已经有了睡眠的进化压力，进化理论说明，大脑就进化到明智使用睡眠时间来处理前一天获得的信息：白天获取，夜晚处理。
And because we already had evolutionary pressure to sleep, the theory goes, the brain evolved to use that time wisely by processing information from the previous day: acquire by day; process by night.
在一个阳光明媚的白天或夏天的夜晚，在城市里走着走着，美丽的景色，使自己的心情越来越好。
On a sunny day or summer night, long hikes through the city can be as beautiful as long hikes through the mountains.
在阳光明媚的白天，或是宁静的夜晚，和最好的朋友选一个你喜欢的位置坐下，不管是聊天还是静静欣赏，这段时间都将成为记忆中美丽的画卷。
Picking your favorite place, dating some of your best friends in a sunny day or peaceful night, no matter you are chatting or keeping silent, it will be a beautiful scene in your memory.
秋的白天很长，当夜晚迟迟才来临时，我们会匆匆地从田野中把庄稼收回来。
The fall days are long, lasting well into the night, as we hurry to get the crops from the field.
肝脏期待脂肪和糖类，在白天而不是在夜晚。
The liver expects fats and sugars during the daytime not the nighttime.
白天，每分每秒我都在想念你，夜晚，每时每刻我都在梦见你。
You are in my thoughts every minute of the day, in my dream everyhour of the night.
毛发使得动物可以在白天抵挡阳光，在夜晚抵挡严寒。
Hair insulates animals against the sun by day as well as against the cold by night.
他继续说：“热电装置将热量转化成电能，这些热量可以来自太阳或者温差，比如白天到夜晚的温差。”
He continued: 'Thermoelectric devices convert heat to electrical energy and this can be from the sun or a drop in temperature such as day temperatures to night.
至少电力公司应该乐于卖出更多电力，不论是白天还是夜晚。
At least the electricity companies ought to be pleased at the prospect of selling more power, day or night.
这项与传统观点截然不同的发现刊登在最近一期的《科学》杂志上——传统的观点认为，为了保存能量，肉食恐龙只在白天活动，而把夜晚留给了那些小型的哺乳动物。
The discovery, published in the latest issue of Science, counters the traditional view that, in order to conserve energy, these animals were active only by day, leaving the night to small mammals.
在每一年的春分点上，太阳横跨着地球上的赤道，使得地球上大部分地区的白天和夜晚的时间接近相等。
At each equinox, the sun crosses the Earth's equator, making night and day of approximately equal length on most of the planet.
人体自身分泌褪黑激素，而且大多数生物夜晚比白天分泌得更多。
This hormone is produced by our bodies and in most organisms melatonin production is higher during the night than during the day.
适用于加工的马铃薯通常产自温带，那里温暖的白天和凉爽的夜晚能满足这种作物的喜好。
Potatoes fit for processing are usually grown in more temperate latitudes. The tuber likes warm days and cool nights.
Malhotra患有失眠症，他说他发现夜晚比白天更富有魅力。
An insomniac, Malhotra says he finds the night more attractive than the day.
白天，让月亮与繁星支配夜晚。
On the fourth day, Icommanded the light to appear in the sky and I let the sun rule over the dayand the moon and stars rule during the night.
但是总的来说，罗强调，重要的是你摄入的总的卡路里数，不管是在白天还是夜晚。
But all in all, Rosenbloom says, it's your calorie total that matters, day or night.
我每天早上想到的第一件事就是那次经历，每天白天和夜晚入睡之前，我想到那件事的次数不计其数。
I think about that every morning when I wake up, first thing, during the day, I don't know how many times and every night before I fall asleep.
我每天早上想到的第一件事就是那次经历，每天白天和夜晚入睡之前，我想到那件事的次数不计其数。
I think about that every morning when I wake up, first thing, during the day, I don't know how many times and every night before I fall asleep.
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