| 释义 |
astronomical unit
基本英英近义反义例句
n.天文单位
天体星系
Noun:
a unit of length used for distances within the solar system; equal to the mean distance between the Earth and the Sun approximately 93 million miles or 150 million kilometers近义词 AU天文单位（=Astron…
用作名词Oneastronomical unitequals the distance from the earth to the sun.一天文单位等于从地球到太阳的距离。 |