It was there, 18 centuries before the Copernican revolution, that Aristarchus posited a heliocentric solar system and Eratosthenes calculated the circumference of the Earth.

也就是在那里，在哥白尼学说出现的1800年之前，阿里斯塔克确立了以太阳为中心的太阳系的假说，埃拉托色尼计算出了地球的周长。

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Half of the days of the earth revolution multiplies half of the earth's revolution is the revolution of the sun.

地球公转日子的一半乘以地球公转的一半，就是对太阳的公转。

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One day the moon rises, the earth revolution to one year, would like one to twenty-four hours, love a man to life, but an intimate blessing as long as the second: happy year of the rooster!

月亮升起要一天，地球公转要一年，想一个人要二十四小时，爱一个人要一辈子，但一句贴心祝福只要一秒：鸡年快乐！

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The Earth takes twenty-four hours to complete one full turn or revolution of three-hundred-sixty degrees.

VOA: special.2010.07.14

Our second American Revolution will push on to new possibilities not only on Earth but in the next frontier of space.

CNN: State of the Union Address

Roundtables are also planned, all with the overarching and generally accepted goal of limiting the rise of Earth's temperature to within 2 degrees Fahrenheit above its temperature before the industrial revolution.

CNN: Leaders to focus on climate change at summit