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一颗行星保持大气的能力取决于它的温度和质量。
A planet's ability to retain an atmosphere depends on its temperature and mass.
youdao
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它只是颗行星，金星，我没记错的话。
It's a planet. It's Venus, if I recall correctly.
youdao
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我们的家园地球，是太阳系的第三颗行星。
Earth, our home, is the third planet from the sun.
youdao
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此外还有七颗行星也围绕着太阳转。
Seven other planets also go around the sun.
youdao
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当天晚上他们就发现了一颗行星。
They discovered the new planet that night.
youdao
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地球是颗行星，它围绕着太阳转。
Thee earth is a planet and it goes around the sun.
youdao
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其中一颗行星失控地旋转进入太空。
One of the planets went spinning wildly off into space.
youdao
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自那时以来，又发现了两颗行星。
Since then, two more planets have been discovered.
youdao
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如果你想要，你可以得到一颗行星。
You can have a planet if you want.
youdao
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土星是依次离太阳的第六颗行星。
Saturn is the planet sixth in order from the sun.
youdao
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地球只是宇宙中的一颗行星。
Earth is just one planet in the universe.
youdao
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它不是颗恒星而是一颗行星。
It's not a star but a planet.
youdao
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星河是由无数颗行星组成的。
The Galaxy is made up of countless planets.
youdao
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冥王星该不该是颗行星？
Should Pluto be a planet?
youdao
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海王星是第八颗行星，第三个最巨大的。
Neptune is the eighth planet, and the third most massive.
youdao
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但只有一颗行星上有生命，那就是地球。
But there was only one planets had life. That was the earth.
youdao
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它是围绕恒星费利克斯旋转的第四颗行星。
It is the fourth planet in orbit around the star Felix.
youdao
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但是，我们如何才能找到这样一颗行星呢？
But how would we find such a planet?
youdao
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楚格星系的第三颗行星。
The third planet in the Zug system.
youdao
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按照官方说法，冥王星仍然算不上一颗行星。
Officially, Pluto is still not a planet.
youdao
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我在你这个年龄时，冥王星还是一颗行星。
When I was your age, Pluto was a planet.
youdao
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哪颗行星是蓝色的？
Which of the planets is blue?
youdao
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Gliese 581g是否确实是一颗行星依然是个谜。
Whether Gliese 581g is an actual planet remains an open question.
youdao
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欢迎来地球，一颗被称作太阳的恒星的第三颗行星。
Welcome to planet Earth, the third planet from a star named the Sun.
youdao
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一颗行星逃过宇宙大灾难的机会其实并不那么多。
There are only so many times that a single planet can escape cosmic catastrophe.
youdao
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印有“冥王星是一颗行星”字样的T恤衫正在热卖。
Sales of "Pluto is a Planet" T-shirts are high.
youdao
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地球是一颗行星。
The earth is a planet.
youdao
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地球是一颗行星。
The earth is a planet.
youdao