light year

英 [ˈlaɪt jɪə(r)]

美 [ˈlaɪt jɪr]

n.  光年(指光在一年中走过的距离：9.4607 × 10¹²公里); 很长时间; 很久

Collins.1

牛津词典

noun

• 光年（指光在一年中走过的距离：9.4607 × 10¹²公里）
  the distance that light travels in one year, 9.4607 × 10¹² kilometres
  1. 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。
• 很长时间；很久
  a very long time
  1. Full employment still seems light years away.
     充分就业好像依然是遥遥无期。

柯林斯词典

• N-COUNT 光年（指光在1年中所经过的距离）
  Alight yearis the distance that light travels in a year.
  1. ...a star system millions of light years away.
     几百万光年外的一个星系
• N-COUNT 极大的差距；极远的距离；极长的时期
  You can say that two things arelight yearsapart to emphasize a very great difference or a very long distance or period of time between them.
  1. 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。
  2. I had not eaten anything hot since my last dinner with Sean. It seemed light-years away.
     上次和肖恩吃过饭后我就一直没吃过热菜热饭。好像已经过了很久很久似的。

英英释义

noun

• the distance that light travels in a vacuum in 1 year
  Synonym:light-year

双语例句

• Western banks have booked losses stemming from an alleged fraud that came to light last year involving metal held in two Chinese ports.
  西方银行计入了因卷入去年曝光的涉嫌欺诈案而导致的亏损。该案涉及到扣留在中国两处港口的金属。
• Do you know the light year? Nothing in the world travels faster than the light.
  你知道光年吗？在这个世界上，没有什么比光传播得快。
• The research suggests that, every 26m years, the star's eccentric orbit brings it within one light year of the solar system.
  研究表明，每经过2600万年，这颗星的偏心轨道就将它带到距太阳系1光年的范围内。
• Light and oil-free within one year, effective to extend the motor life, reduced maintenance time and maintenance costs.
  轻便且一处内免注油，有效延长电机寿命，减小维修时间和维修成本。
• With the development of economy and the progress of technology, the improvement of the quality of light weight aggregate, tall building structures with the construction of light weight aggregate concrete increase year by year.
  随着经济技术的发展，轻质骨料质量的不断提高，轻骨料混凝土在高层建筑结构中的应用日益增多。
• And one light year is the distance that travels in one year.
  一光年就是光一年所跑的距离。
• The ministry is highly likely to give the manual the green light next year, Tao said.
  陶表示，明年卫生部极有可能给该标准开绿灯。
• My tomatoes produced only a light crop this year.
  我今年的西红柿歉收。
• US cars and light truck sales last year were 10.4m.
  去年美国轿车和轻型卡车的销量为1040万辆。
• In kunming, yunnan has double light meal Atlantic last year.
  云南昆明的莲瓣兰大小雪素去年一直热销。