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1. Oxford American Dictionary

   planet

   • IPA[ˈplanət]

   美式

   • n.
     a celestial body moving in an elliptical orbit around a star.；the earth

   • noun: planet, plural noun: planets

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. a celestial body moving in an elliptical orbit around a star.
   • ▪ the earth no generation has the right to pollute the planet
   • ▪ a celestial body distinguished from the fixed stars by having an apparent motion of its own (including the moon and sun), especially with reference to its supposed influence on people and events the planets are presently influencing you in a positive way

   superior planet

   • n.
     any of the planets Mars, Jupiter, Saturn, Uranus, and Neptune, whose orbits are further from ...

   Oxford American Dictionary

   inner planet

   • n.
     a planet whose orbit lies within the asteroid belt, i.e. Mercury, Venus, Earth, or Mars.

   Oxford Dictionary

   minor planet

   • n.
     an asteroid.

   Oxford Dictionary

   outer planet

   • n.
     a planet whose orbit lies outside the asteroid belt, i.e. Jupiter, Saturn, Uranus, or Neptune.

   Oxford Dictionary

   minor planet

   • n.
     an asteroid.

   Oxford American Dictionary

   dwarf planet

   • n.
     a celestial body resembling a small planet but lacking certain technical criteria that are ...

   Oxford Dictionary

   dwarf planet

   • n.
     a celestial body resembling a small planet but lacking certain technical criteria that are ...

   Oxford American Dictionary

   primary planet

   • n.
     a planet that directly orbits the sun.

   Oxford Dictionary

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3. • 更多解釋

   planet

   • IPA[ˈplanɪt]

   英式

   • n.
     a celestial body moving in an elliptical orbit round a star.

   Oxford Dictionary