light year
导读:light year读音音标
英 [lait jə:]美 [laɪt jɪr]
light year意思解释
n.光年; 变形 复数:light years 英英释义 light year n.the distance that light travels in a vacu
英 [lait jə:]美 [laɪt jɪr]
light year意思解释
n.光年; 变形 复数:light years 英英释义 light year n.the distance that light travels in a vacu

light year读音音标
英 [lait jə:]
美 [laɪt jɪr]
light year意思解释
n.
光年;
变形
复数:light years
英英释义
light yearn.
the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers
同义词:light-year
双语例句
The distance can be expressed in light years.距离可以用光年表示。A place that requires one year for light to reach is one light year distant from us.因此光需要一年时间才能到达的地方离我们也就是一光年的距离。
