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1·A light year far.

一光年到底有多远。

2·The distance of a light year boggles the imagination.

一光年的距离大得令人难以想象。

3·Light year means the distance that light covers in a year.

光年是指光在一年时间里所跑过的距离。

4·The Oort Cloud is thought to extend about 1 light year from the Sun.

欧特云团距太阳1光年距离。

5·A short distance, to be sure, but at the time it felt like a light year.

确实只有很短的距离，但那时我却感到距离了一光年似的。

6·No one would say that. A light year is a unit of distance not time.

没有人会那么说，一光年是距离单位不是时间单位。

7·Matese estimates Nemesis is 25,000 AU away (or about one-third of a light year).

玛提斯认为“复仇者”距太阳有25000个天文单位(或者说三分之一光年)。

8·Matese estimates Nemesis is 25, 000 AU away (or about one-third of a light year).

玛提斯认为“复仇者”距太阳有25000个天文单位(或者说三分之一光年)。

9·Know astronomical unit and light year are used for expressing the distance between celestial bodies.

知道天文单位和光年是用来丈量天体之间距离的单位。

10·The monster, on the right, is actually an inanimate pillar of gas and dust that measures over a light year in length.

右边的怪物，实际上是无生命的气体和尘埃柱，据测长度超过一光年。