我们都知道地球围绕着太阳运转。
这是因为地球是在围绕着太阳运转。
正如我们都知道的，地球围绕着太阳运转。
地球围绕着太阳运转。
这九个行星一起组成一个家庭，它们围绕着太阳运转。
Together they make a familyofnine planets which travel around Sun.
季节转换现象的出现是因为地球围绕着太阳运转时，发生倾斜现象。
The seasons happen because the Earth tilts as it goes around the Sun.
不管地球的运行速度只有每秒钟18英里，它还是一年又一年地围绕着太阳运转。
Despite moving at 18 miles per second, it still takes the Earth a year to make it around the Sun.
顺便说一下，月亮被称为卫星，是因为它围绕着我们地地球盍同时围绕太阳运转。
The moon, by the way, is called a satellite because it goes round our earth as well as round the sun.
之前人们曾报道过另外三颗据信由岩石组成的太阳系外行星，但是，它们是围绕着一颗脉冲星(恒星爆发后遗留的发光的残存物)运转的，而不是一颗常态的恒星。
Three other extrasolar planets believed to be of rocky composition have been reported, but they orbit a pulsar - the flashing corpse of an exploded star - rather than a normal type of star.
系外行星是指位处太阳系以外的行星，它们围绕着太阳之外的其它恒星运转。
An exoplanet is a planetary body that sits outside our solar system and orbits another star that is not our sun.
这个新的星体被命名为：Kepler 10 - b，它围绕着一个距离560光年类似太阳的恒星运转。
The new planet, called Kepler 10-b, orbits a sun-like star 560 light-years away.
有一颗大小与地球相近的行星围绕着距离太阳最近的恒星——半人马座比邻星运转。
The nearest star, Proxima Centauri, has a planet orbiting it not much bigger than Earth.
有一颗大小与地球相近的行星围绕着距离太阳最近的恒星——半人马座比邻星运转。
The nearest star, Proxima Centauri, has a planet orbiting it not much bigger than Earth.
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