superior planet

常见例句

• 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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