英语单词分类 轻松记单词

light-year

英 ['laɪt'jɪr] 美 ['laɪt'jɪr] 

light-year基本解释

n.光年

light-year同义词

light-year英英释义

noun

1. the distance that light travels in a vacuum in 1 year
5.88 trillion miles or 9.46 trillion kilometers

Synonym: light year

成人英语MBA联考单词大全