| 释义 |
light year 英ˈlaɪtˌjɪə美ˈlaɪtˌjɪrAHDlītʹyîr' COCA¹³⁷⁹¹BNC⁷⁵⁹⁹¹⁺¹²iWeb²⁰⁶³⁵Economist⁴¹³⁰³⁺²
基本英英记法近义反义例句例句
n.光年¹⁰⁰复数light-years
行星恒星
Noun:
the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers蒋争熟词记忆light光yearn.年⇒光年light光yearn.年⇒光年近义词 light year光年
形容词100%
用作名词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。 A light-year is the distance light travels in a year, or roughly6 trillion miles10 trillion kilometers.
光年是指光传播一年时间的距离，相当于10万亿公里6万亿英里。 bbs.bjp.org.cn |