以下为句子列表：
英文: A light year is the distance which light travels at186,000 miles per second in one year, namely6 million million miles.
中文: 1光年是以每秒186000英里的速度走过一年的距离，约为6万亿英里。
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英文: Solar system is by receives the system which the gravitational pull restraint the heavenly body is composed, its most wide range approximately may extend to 1 light year outside.
中文: 太阳系是由受太阳引力约束的天体组成的系统，它的最大范围约可延伸到1光年以外。
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英文: The research suggests that, every 26m years, the star's eccentric orbit brings it within one light year of the solar system.
中文: 研究表明，每经过2600万年，这颗星的偏心轨道就将它带到距太阳系1光年的范围内。
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英文: These have proven to be elusive subjects of study because existing telescopes do not have the resolution to see within a fraction of a light year of the central supermassive black hole, where these little black holes are thought to be concentrated most he
中文: 事实已经证明，这是一个很难研究的课题，因为现有的望眼镜不能看到在特大黑洞一光年以内的东西，那里才是人们所认为的、小黑洞聚集的地方。
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