The nearest star to earth is about 4 light years away.
地球离最近的恒星大约为4光年。
However, Gliese 581g is twenty light years from the Earth.
然而，Gliese 581g 距离地球20光年。
She says the French education system is light years ahead of the English one.
她说法国的教育体制远比英国的先进。
It is, however, 600 light years from Earth.
不过，这颗行星距离地球长达600光年。
The planet, roughly the size of Jupiter, is around 750 light years away.
TrES - 2 b基本如木星一般大小，距离地球大约750光年。
The crime was brought to light years later.
几年以后，罪行暴露了。
The distance can be expressed in light years.
距离可以用光年表示。
It will put our school light years ahead of your competition.
这样将会使我们的学校在竞争中独占鳌头。
Righteous punishment is a thousand light years away from revenge.
公正的惩罚跟报复可差得十万八千里。
In the year 296,036, Voyager 2 will pass within 4.3 light years of Sirius.
在296036年，“旅行者2号”将在4.3光年的距离范围内通过天狼星。
Of course, the cosmic elephant's trunk is over 20 light-years long.
当然，这个星际象鼻长达 20光年以上。
At that distance, this image would be about 300 light-years across.
在那个距离，这张图约宽300光年。
It is 870 light-years from Earth.
它距离地球870光年远。
The pair are about 31 million light-years distant.
这一对星系相距大约3千1百万光年。
The green ring structure near the center of the image is about 77 light-years across.
图片中间的绿色环状结构的跨度大概有77光年。
The whole gas cloud is about 50 light-years across.
整个气体云的宽度约为50光年。
The entire image is approximately 260 000 light-years across.
整个图片跨度大约是26万光年。
The entire image is approximately 260 000 light-years across.
整个图片跨度大约是26万光年。
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