The annual revolution of the earth round the sun causes the revolution of the seasons.

地球每年绕太阳公转一次形成四季循环。

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This is the annual revolution of the earth around the sun and the time periods are the same as the outer circle.

外圈的圆就和地球围绕太阳年复一年的旋转周期一致。

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Because of rotation and revolution of the earth, solar ultraviolet radiation intensity varies in diurnal and annual periodic.

由于地球自转和公转的原因，太阳紫外线辐射强度呈现出以一年和一天为周期的规律性变化。

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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

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

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