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- There are nine planets in the solar system. 在太阳系中有九大行星。
- There are nine planets in the space. 太空中有九大行星。
- Are nine planets in the solar system. 在太阳系中有九大行星。
- There are nine planets going round the sun. 九颗行星围绕太阳运转。
- Earth is one of nine planets which revolve around the sun. 地球是围绕太阳旋转的九个行星之一。
- There are nine planets travelling around the sun,the earth is one of them. 有9个行星围绕着太阳转，地球是它们之一。
- What mysteries do you know about the nine planets in the solar system? 关于太阳系里的九大行星,你知道哪些奥秘?
- There are nine planets travelling around the sun, the earth is one of them. 有9个行星围绕着太阳转，地球是它们之一。
- There are nine planets in the solar system, some of which are much larger than our earth. 太阳系有九颗行星,其中有几颗比我们的地球大的多。
- Earth is one of nine planets which revolve around the sun. This family of planets, with their moons, is known as the solar system. 地球是围绕太阳旋转的行星之一。这个行星家庭以及它们的卫星，就是我们所知道的太阳系。
- Our planet Earth is one of nine planets which move round, or orbit, the sun.The Sun, planets, and their moons form the solar system. 我们的地球是围绕太阳按轨道运行的九大行星之一。太阳、行星及行星各自的卫星构成了太阳系。
- Moving around the nucleus are extremely tiny particles, called electrons, which revolve around the nucleus in much the same way as the nine planets do around the sun. 参考译文：围绕着原子核运动的是一些极其微小的粒子，称为电子，这些电子围绕着原子核旋转，正像九大行星围绕着太阳旋转一样。
- In the working out of horoscopes (called Janmakundali), the position of the Navagrahas, nine planets plus Rahu and Ketu (mythical demons, evil forces) was considered. 计算诞生时的星位（叫做杰马昆达尼），阿格拉（印度北部一城市）的位置，被认为是九颗行星加上拉胡和库吐（神秘的魔鬼，邪恶的力量）。
- Leading astronomers declared Thursday that Pluto is no longer a planet under historic new guidelines that downsize the solar system from nine planets to eight. 要天文学家周四宣布，在发布历史性的新方针后，太阳系九大行星缩减为八大行星，冥王星已不再是行星。
- It seems that even if the IAU had kept Pluto's status as a planet, the classical theory of nine planets in the solar system would have had to be changed, but the other way around. 译：由此看来，即使国际天文学联合会保住冥王星的行星地位，经典的太阳系九大行星理论也仍然要改，只是改法相反而已。
- The first part of Avebury Manor from July 15, 2008 showed our complete solar system of nine planets on an upcoming date of December 21-23, 2008, when the Mayan Long Count calendar will end. 埃夫伯里庄园从第一部分2008年7月15日表明，显示了九个行星我们的完整太阳系在一个即将来临的日期的日期12月21日至23日，2008年，当玛雅长期计数的日历将结束。
- Scale of the nine planets of the Solar System 太阳系九大行星的大小比较
- She'd be in time if she got the nine o'clock bus. 如果她赶上九点钟的汽车，她就会及时到达。
- The couple seemed to be on cloud nine. 那对夫妇看上去极其幸福。
- She had already gone to bed at nine last night. 昨晚九点钟她已上床去睡了。
