outer planet
英
美
- n. [天]带外行星
详细释义
Noun:
-
(astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)
双语例句
- They are the first cirrus clouds seen on an outer planet.
它们是首次在外行星上发现的卷云。 - The planet is twice as large as the earth and is the smallest exoplanet ever found.
这颗行星的体积是地球的两倍，是到目前为止天文学家发现的体积最小的太阳系外行星。
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