中文名称：光年 英文名称：light year 定义：天体距离的一种单位.1光年等于光在真空中一年内行经的距离,约等于1013km.光年,长度单位,光年一般被用于计算恒星间的距离.光年指的是光在真空中行走一年
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light-year 光年
Buzz light year 巴斯光年 ; 太空人巴斯光年 ; 巴兹光年 ; 光年
One light year 一光年
Buzz light year Astro Blasters 巴斯光年星际历险
Buzz Erik light year 一位名为巴兹·艾瑞克
Buzz light year Astro Blaster 巴斯光年星际历险
Buzz light year mission log 巴斯光年任务日志
light- year 光年
Pink light-year 粉色光年
同义词： light-year
以上来源于: WordNet
N-COUNT A light year is the distance that light travels in a year. 光年
...a star system millions of light years away.
…数百万光年之外的一个星系。
N-COUNT You can say that two things are light years apart to emphasize a very great difference or a very long distance or period of time between them. (差异) 极大; (距离、年代) 极远 [非正式]
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。
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。
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。
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)。
Their appearance changes endlessly with the light,the time of year, and the weather.
VOA: special.2009.10.07
Campaigners have slammed the verdict, calling the two-year prison term for the former top managers "too light."
VOA: standard.2010.06.10
The experts expect their one-year global probe into secret detention centers to shine more light on the extensiveness of these facilities and how they operate.
VOA: standard.2009.03.21
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