科学家们在争论一颗小行星是否要撞上地球。
Scientists were debating whether an asteroid was about to hit the Earth.
科学家：他们吞噬了40%地球后。然后就停止了！
Scientist: They devoured 40% of the Earth, and then just... quit!
科学家认为，地球最开始只是一团无水的岩石。
Scientists think Earth started off as a waterless mass of rock.
一些科学家认为，太空太阳能对地球是一种潜在的长期能源供给。
Some scientists believe that space solar power is a potential long-term energy solution for Earth.
很多科学家认为地球上的一切生命都拥有相同的祖先。
According to most scientists, all life on Earth has a common ancestor.
对于许多物理学家来说，LHC是地球上最重要的实验。
For many physicists, the LHC is the most important experiment on Earth.
对地质学家来说，冰川是地球上最令人兴奋的存在之一。
To a geologist, glaciers are among the most exciting features on Earth.
科学家们经常研究火星的天气，希望可以更好地理解地球的天气。
Scientists often study Mars's weather in the hope of better understanding our own.
美国宇航局(NASA)的科学家们长期研究地球，对此了如指掌。
NASA scientists have studied Earth long enough to know this.
科学家表示，持续的排放使地球越来越热。
Scientists say continued emissions will cause the planet to heat up further.
科学家们发布了一副最为精确的地球重力地图。
Scientists have unveiled the most accurate map ever produced of the Earth's gravity.
科学家告诉我们，地球正在变暖这一迹象已不容置疑。
Scientists tell us that the evidence the Earth is warming is "unequivocal."
@@@地球上正在锐减的空气难倒科学家们
然而，科学家们相信他们不是地球上第一种动物。
However, scientists believe they were not the first animals on Earth.
绝大多数科学家认为，构成生命物质基础的化学元素都来自地球本身。
月球可能比科学家原先认为的更要“地球化”。一份最新的月石研究报告称，月球有一颗“铁心”。
A new moon-rock study suggests the satellite has an iron core.
科学家们正在探索地球上生命的奥秘。
The scientists are searching after the secret of life on earth.
他们应包括公司，支持科学家和鼓励个人保护地球。
They should involve companies, support scientists and encourage individuals to protect the planet.
地质学家已经计算出了地球的年龄。
他的父亲是C星球上的一个哲学家，经常给他讲地球的故事。
His father, a philosopher on C Star, often tells him stories about the earth.
一些科学家认为，地球上的生命是逐渐进化的。
Some scientists suggested that there had been a gradual evolution of life on earth.
科学家指出地球正在逐渐变暖。
Scientists point out that the globe is getting warmer and warmer.
在地球的研究方面经过训练的科学家。
复藻，根据科学家的定义，是这个地球上最初的生物。
This, according to the scientists, was the beginning, the dawn of life upon the earth.
那里的科学家首次成功地将一颗卫星送上了地球。
For the first time Venusian scientists managed to land a satellite on the plant Earth.
科学家告诉我们由于空气污染，地球的热力无法散出去。
Scientists tell us that because of air pollution the earth's heat can't escape.
科学家声称全球暖化已经逐渐对地球环境构成威胁。
Scientists claim that global warming has become a threat to earth's environment.
科学家声称全球暖化已经逐渐对地球环境构成威胁。
Scientists claim that global warming has become a threat to earth's environment.
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