光年用英语怎么说

light year light year =light-year light-year 名词n. 1. 【天】光年

light year 英[lait jə:] 美[laɪt jɪr] n. 光年; [例句]She says the French education system is light years ahead of the English one她说法国的教育体制遥遥领先于英国。[其他] 复数：light years 请采纳 O(∩_∩)O谢谢

light-year

a light year1光年例句：1. 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。2. And in this light year of Oscar-worthy films, our recommendation is that you see anything that is getting good buzz. 在今年这样有实力获得奥斯卡奖电影的上映淡季，我们推荐你看看这些受到好评的电影。3.The monster, on the right, is actually an inanimate pillar of gas and dust that measures over alight 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。光年：（长度单位）光年是长度单位，是计量光在宇宙真空中沿直线传播了一年时间的距离的单位，一般被用于衡量天体间的时空距离，其字面意思是指光在宇宙真空中沿直线传播了一年时间的距离，为9460730472580800米，是由时间和光速计算出来的。