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Before this decade is out, of landing a man on the moon, and returning him safely to the earth.
在七零年代之前，让人类成功登月并安全返回地球。
《Transformers: Dark of the Moon》《变形金刚3》
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Twenty years ago, in Rio, people came together for a major conference on the future of the Earth.
20年前，在里约，人们为讨论地球的未来相聚于此。
《Planet Ocean》《海洋星球》
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On the other hand, some physicists are concerned that if this supercollider actually works, it'll create a black hole and swallow up the earth, ending life as we know it.
另一方面呢，物理学家又开始担心一旦超撞机真的实现，它产生的黑洞会吞噬地球终结生命。
《The Big Bang Theory Season 1》《生活大爆炸 第一季》
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To see why moving faster through space affects passage of time, we need to go back to the 1880s, when two American scientists, Albert Michelson and Edward Morley, were trying to measure the effect of the Earth's movement around the Sun on the speed of light.
如果想了解为什么加快在空间里的行驶速度会影响时间流逝的速度,我们得回到1880年,当时 两个美国科学家阿尔伯特?迈克尔逊 和 爱德华?莫雷尝试衡量地球绕太阳对光速有什么影响。
《TED-Ed》《TED教育》
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When did mammals appear on the earth?
地球上的哺乳动物起源于何时？
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We live on the earth.
我们生活在地球上。
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People and living things can live on the earth.
人和生物可以在地球上生存。
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The poor poet lay on the earth and wept, for the arrow had really flown into his heart.
可怜的诗人躺在地上哭泣，因为箭的确射入了他的心里。
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Every creature on the earth should be treated as an equal member of the nature and be protected.
地球上的每个生物都应被视为自然界平等的一员，并受到保护。
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