astronomical unit
英
美
- n.天文单位
详细释义
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)
双语例句
- One astronomical unit equals the distance from the earth to the sun.
一天文单位等于从地球到太阳的距离。
用作名词 (n.)
相关词汇
- AU 天文单位（=Astron...
【近义词】
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