In the space of all possible lives, life on Earth is but a tiny sliver—one attempt at creativity.
在所有可能有生命存在的空间里，地球上的生命只占一小条――创造性的一次尝试。
The UFOs, it is believed, must contain scientists from other planets who are studying life on earth.
人们相信，这些不明飞行物中一定有来自其他星球的科学家，他们正在研究地球上的生命。
Understanding this cycle is important, not only because it sustains life on Earth, but also because it is bound up with the rate of global warming.
理解这种循环很重要，不仅因为碳循环维持地球上的生命，而且因为它对于全球变暖的速度有密切关系。
First, a climate conducive to life on Earth depends upon the extraordinarily narrow orbital parameters that define a continuously habitable zone where water can exist in a liquid state.
首先，地球上适宜生命存在的气候取决于极其狭窄的轨道参数，这些参数定义了一个持续可居住的地带，在那里水可以以液态存在。
The development of complex life on Earth depended on the presence of bacteria that could be consumed by larger organisms.
地球上复杂生命的发展依赖于细菌的存在，而细菌可以被更大的有机体所吞噬。
For more than a century, Tyrannosaurus rex has been the King of Dinosaurs, the carnivorous symbol of an entire age in the history of life on Earth.
近一个多世纪以来，雷克斯暴龙不但成为了恐龙帝国的统治者，更是整个地球生命史的肉食象征。
The ozone layer protects life on Earth from harmful ultraviolet rays.
臭氧层可以保护地球上的生物免受有害紫外线的辐射。
There are hundreds of thousands of proteins involved in life on Earth.
参与地球上生命活动的蛋白质达到成千上万种。
It's too early, in other words, to conclude that life on Earth was an unlikely accident.
换句话说，目前得出“地球上的生命源于一次意外”的结论还为时过早。
As far as we know, such a magnetic reversal doesn't cause any harm to life on Earth.
就我们所知道的，这种磁极转换不会对地球上的生命造成任何伤害。
Each camera-trap image is a record of an animal in space and time, a record of life on Earth.
每个影像都有特定的时间和空间特性，是对地球生命的记录。
The network of life on Earth, like all distributed being, transcends the life of its ingredients.
地球上的生命网络，与所有分布式存在一样，超越了作为其组成成分的生命本身。
DNA is the basis of all life on earth. It has a double helixstructure， like a spiral staircase.//
DNA是地球上所有生命的基础，它有着像螺旋式楼梯一样的双螺旋结构。
So in the center is the most primitive, and this is a genealogical chart of all life on earth.
在中心是最原始的，这是地球所有生命的系谱。
Things like Life on Earth revealed a world of natural history that just hadn't been seen before.
《生命的进化》揭示了很多以前不为人所知的自然世界。
By their very nature, biofuels cannot be carbon-free because carbon is essential to life on Earth.
就生物燃料的性质而言，它还是会产生出碳质物，因为这种碳对地球上的生物是极有必要的。
That raises the possibility that life on Earth arrived here on a meteorite - a concept called panspermia.
这也为一种叫做有生源说的概念提供了可能性，这一概念认为地球上的生命是由小行星带来的。
The Archaeas. Those are the general approaches to life. That's one way to look at life on Earth today.
这是生命的一般取向，是看待今日地球生命的一种方式。
Life on Earth requires six basic ingredients-carbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus.
构成地球生命需要六项基本要素：碳、氢、氮、氧、硫、磷。
Such predictions make the development of new processes, products and technology vital to human life on Earth.
这样的预测提高了对地球上的人类生活至关重要的新进程，产品和技术。
All life on Earth needs water, carbon-based organic molecules, and an energy source, either solar or chemical.
地球上所有的生命都需要水、碳基有机分子和某种能量来源——不是太阳能就是化学能。
There's an overwhelming number of questions we can ask about life on Earth using these archived specimens.
利用这些分类标本，我们可以提出无数关于地球生命的关键问题。
Mimivirus seems to be part of the story of life on Earth - and it may even rewrite the book of life itself.
米米病毒似乎属于地球生命一族——它甚至也许会改写生命自身的规则。
It's difficult to readjust to life on Earth, to go from being a temporary cosmonaut to being a normal civilian.
重新调整以适应地球生活是困难的，从临时宇航员到普通平民的适应也是一样。
Balder had a dream that he died, which disturbed Frigga since all life on Earth would cease if this dream were to come true.
巴尔·德尔做了一个关于“死亡”的梦，这个梦让弗丽嘉惊恐万分，因为如果这个梦变成现实的话地球上的一切生命将会停止。
Balder had a dream that he died, which disturbed Frigga since all life on Earth would cease if this dream were to come true.
巴尔·德尔做了一个关于“死亡”的梦，这个梦让弗丽嘉惊恐万分，因为如果这个梦变成现实的话地球上的一切生命将会停止。
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