This is the earth. The green part is land. The blue part is sea. The white part is clouds. Our earth is very beautiful and interesting.
这是地球。绿色的部分是陆地。蓝色的部分是海洋。白色的部分是云。我们的地球很美，而且充满乐趣。
During cooling most migrants would be expected to travel toward Africa, which is near the equator, since this is the direction dictated by habitat changes on a cooling Earth.
在气候变冷期间，大多数迁徙者预计将前往靠近赤道的非洲，因为在气候变冷的地球上，这是栖息地变化所决定的方向。
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。
If this is an ellipse around the Earth, this would be perigee and this would be apogee.
如果这是一个围绕地球的椭圆形，那么这是近地点，这是远地点。
Every death is a tragedy—regardless of the cause—but we have no greater claim to use this earth than any of the other creatures that we share it with.
每一种死亡都是悲剧——不管死因是什么——但是我们并没有比与我们共存于地球上的其它生物更大的权利来利用地球上的一切。
This sediment layer is enriched in the rare metal iridium and other elements that are relatively abundant in a meteorite but very rare in the crust of Earth.
这一沉积层富含稀有金属铱，以及其他在陨石中较丰富而在地壳中十分罕见的元素。
This year is the 49th Earth Day and I think we should call on people not to cut down too many trees.
今年是第49个地球日，我认为我们应该呼吁人们不要过度砍伐树木。
This job is to protect the earth from germs on things brought back from other planets.
这份工作是为了保护地球免受从其他星球带回来的东西上的细菌侵害。
This is because the object will be about 500 kilometers above the Earth.
这是因为目标将处于地球上空约500公里处。
This special cultural background is probably the key that separates The Wandering Earth from Hollywood-style space films.
这种特殊的文化背景或许是《流浪地球》区别于好莱坞式太空电影的关键所在。
This is the unknown face of the moon that is always looking away from us, so we never see it from down here on the earth.
月球未知的一面总是远离我们，所以我们从地球上永远看不到它。
This New year I will make a difference in saving the earth. This year I will contemplate on what is green and how I can make a smaller carbon footprint.
每年这时候，人们立下新年的决心，这个新年我将要在拯救地球方面有所作为，这一年我将琢磨绿色环保是什么，以及我如何能够造成一个更小的碳足迹。
This is the will of that mysterious creation which is transformation on earth and transfiguration in heaven.
神秘的造物主就是要使地上变化无穷，天上改观变形。
If this is an ellipse around the Earth, then this would be perigee and this would be apogee.
如果这是一个围绕，地球的椭圆形轨道，那么这是近地点，这是远地点。
By this the attractive force of the earth was not suspended, it is true; but it was balanced by the equality of the weights.
这样一来，地球引力对钢棍的作用就互相抵消，这是必然的。而且，由于两端重量相等，所以它能够保持稳定。
This is because of the Moon's orbit around Earth which is oval or elliptical in shape.
这是因为月球环绕地球的轨道是卵形的或者椭圆形的。
When this happens, the umbra cannot reach Earth and an antumbra shadow is created over the planet's surface.
当这种情况发生的时候，本影无法到达地球，非本影阴影就会出现在地球表面。
In a country where capital outflow is strictly controlled, how on earth do these people manage to transfer their money overseas successfully? This is the third failing.
在一个资本外流受到严格控制的国家，天晓得这些人是如何成功地将他们的资金转移到海外的？这是第三点失误。
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.
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。
The unique feature of this book is its down-to-earth practicality.
这本书所独有的特点就是其讲求实际的实用性。
It is the failure to mirror the distributed nature — the swarm nature — of life on Earth that is this model's greatest failure.
这个模型最大的失败，就在于它没有反映出地球生命所具有的这种分布式的本性——群集本性。
Mankind appropriates about a quarter of what is known as the net primary production of the Earth (this is the plant tissue created by photosynthesis)—a lot, but hardly near the point of exhaustion.
人类仅利用了地球大约四分之一净初级生产资源（这是由植物组织光合作用所产生的）。 虽然这已经很多，但是还没有达到用尽的地步。
What is clearly happening inside this glass capsule is happening less clearly at a great scale on Earth in the closing years of this millennium.
这个太空玻璃实验舱里正在真真切切发生的事情，在这个千禧年末的几年里，将会在地球上大规模地上演，但不会如此真切地上演。
One way to do this is to be kind to animals, the Earth, and your own body.
这其中的一个方法便是善待动物和地球，以及你的身体。
News of this, the Haiti quake and now Chile make it seem Earth is becoming ever more active.
日本地震的消息、海地地震和现在的智利地震使我们感觉地球正在变得越来越活跃。
The main cause lies in this, that neither the air nor the earth is everywhere in the same condition.
在环境条件相同的情况下，造成天气复杂多变的主要因素，并不是到处存在的空气，也不是地球本身。
Both geographic and projected coordinate systems include a definition of the assumed shape of the earth (a flattened sphere); this is called the geodetic datum.
地理和投影坐标系都包含对地球形状的假设(一个略扁的球体)；这称为大地基准点。
The moon is caught between Earth and the space shuttle Discoveryin this photo taken in 1988.
1988年，发现号航天飞机拍到这张地球和太空之间的月亮。
The moon is caught between Earth and the space shuttle Discoveryin this photo taken in 1988.
1988年，发现号航天飞机拍到这张地球和太空之间的月亮。
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