单词	light year
释义	English American light yearnoun [ C ] uk/ˈlaɪt ˌjɪər/us/ˈlaɪt ˌjɪr/ the distance that light travels in one year (about 9.5 million million kilometres) Thesaurus: synonyms and related words Years & yearly ad Anno Domini annual annually annus horribilis BCE bicentenary calendar year CE centenary date financial year fiscal year leap year New Year solar year year year end year's end yearly See more results » You can also find related words, phrases, and synonyms in the topics: Measurements in general Idiom(s) light years away light yearnoun [ C ] us/ˈlɑɪt ˌyɪər/ earth science the great distance that light travels in one year; about 5,880,000,000,000 miles or 9,460,000,000,000 kilometers earth science People sometimes say light years to talk about an extremely long distance or time: When I was a young man, being 50 seemed light years away.
随便看	at the push of a button at the ready at the receiving end of something at the risk of doing sth at the same time at the same time at the stroke of a pen at the time at the top of your lungs at the top of your lungs at the top of your voice at the very latest At the very least at the weekend at this moment in time at this rate at times at top speed at variance at weekends at will at work at worst at your command at your convenience