outer planet

• n. [天]带外行星

英英释义

Noun:

1. (astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)

例句

用作名词 (n.)

1. 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。
2. 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。