light year 的英语意思
light yearˈlight year noun [countable] 
查看全部语言翻译1the distance that light travels in one year, about 9,460,000,000,000 kilometres, used for measuring distances between stars光在一年内传播的距离，约9,460,000,000,000千米，用于测量星际距离: 
a star 3,000 light years from Earth距地球3,000光年的一颗恒星2light years ahead/better etc than something informal非正式 much more advanced, much better etc than someone or something else比某人或某事物先进得多、好得多等: The Japanese company is light years ahead of its European competitors.这家日本公司比其欧洲竞争对手领先了不知多少光年。3 light years ago informal非正式 a very long time ago很久以前: It all seems light years ago now.这一切现在看来仿佛是很久很久以前的事了。
查看全部语言翻译1the distance that light travels in one year, about 9,460,000,000,000 kilometres, used for measuring distances between stars光在一年内传播的距离，约9,460,000,000,000千米，用于测量星际距离: a star 3,000 light years from Earth距地球3,000光年的一颗恒星2light years ahead/better etc than something informal非正式 much more advanced, much better etc than someone or something else比某人或某事物先进得多、好得多等: The Japanese company is light years ahead of its European competitors.这家日本公司比其欧洲竞争对手领先了不知多少光年。3 light years ago informal非正式 a very long time ago很久以前: It all seems light years ago now.这一切现在看来仿佛是很久很久以前的事了。