The Sun is the hub of a huge rotating system consisting of nine planets, their satellites, and numerous small bodies, including asteroids, comets, and meteoroids.
太阳是一个巨大的旋转系统的中心，这个旋转系统由九大行星、它们的卫星和无数的小天体组成，包括小行星、彗星和流星体。
The solar system mainly consists of the sun and nine planets.
太阳系主要由太阳和九大行星组成?。
The biggest known earthquake in history neither has anything to do with the "Nine planets line-up", nor "devastated the earth".
迄今为止，世界上最大的一次地震，既与“九星成线”无关，也并未“摧毁地球”。
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.
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。
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.
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。
Because when you think about the solar system, you might think about this picture here. And you would say, well, there are eight planets, maybe nine.
因为当你想到太阳系，你可能会想到这幅画面——你会说，嗯，总共有八颗行星，也可能是九颗。
Because when you think about the solar system, you might think about this picture here. And you would say, well, there are eight planets, maybe nine.
因为当你想到太阳系，你可能会想到这幅画面——你会说，嗯，总共有八颗行星，也可能是九颗。
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