| 1. | The earth revolves once a year around the sun .
地球一年绕太阳公转一次。 |
| 2. | He taught that the earth revolves around the sun .
他指出地球是围绕太阳转的。 |
| 3. | The planets revolve around the sun .
行星绕着太阳运转。 |
| 4. | The earth moves around the sun .
地球围绕着太阳运转。 |
| 5. | The earth revolves around the sun in an ellipse with the sun at one of the foci .
地球在以太阳为焦点的椭圆上围绕太阳公转。 |
| 6. | The earth's rotation and its motion around the sun add an appreciable frequency shift .
地球自转与地球绕日公转产生附加的频移。 |
| 7. | Each planet traces an orbit around the sun as if no other planets were present .
每一个行星绕着太阳作轨道运行，就像不存在其它行星那样。 |
| 8. | He collected facts that proved the earth and all the other planets move around the sun .
他积累了很多论据，证明地球和所有别的行星都是绕太阳旋转的。 |
| 9. | The earth moving around the sun gives us a baseline for measurements of objects outside the solar system .
地球绕太阳公转，为测量太阳系外的恒星距离提供了一条基线。 |
| 10. | As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun .
作为另一个例子，地球和月亮的质心就是在一个绕太阳的近似的圆轨道上运行。 |
