[N-COUNT 可数名词]行星 A planet is a large, round object in space that moves around a star. The Earth is a planet.
The picture shows six of the eight planets in the solar system.
这幅图标示了太阳系八大行星中的6颗。
Oxford
planet★/ˈplænɪt; NAmEˈplænɪt/noun1★[countable ]a large round object in space that moves around a star (such as the sun) and receives light from it 行星◆the planets of our solar system太阳系的行星◆the planet Earth/Venus/Mars地球;金星;火星2★the planet[singular ]used to mean ‘the world’, especially when talking about the environment 地球(尤指环境)◆the battle to save the planet拯救地球的战斗IDIOMto be on another ˈplanet | what ˈplanet is sb on?( informal,humorous) used to suggest that sb's ideas are not realistic or practical (指某人的想法完全不切实际)◆He thinks being a father is easy. What planet is he on?他认为做父亲很容易,他真是在做白日梦!planetplanetsplanet/ˈplænɪt; NAmEˈplænɪt/
LDC
planetplan‧et /ˈplænɪt/ ●●●W3 noun [countable]
Word Origin
Examples
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Phrases
1planet (1)a very large round object in space that moves around the Sun or another star: Mercury is the smallest of all the planets. Is there life on other planets? the future of planet Earth ► Don’t say ‘in a planet’. Say on a planet.2somebody is (living) on another planet/what planet is somebody on? spoken used humorously to say that someone’s ideas are not at all practical or sensible: He thinks motherhood is glamorous – what planet is he on?3the planet the world – used especially when talking about the environment: a safer future for the planet—planetary adjective [only before noun]: the planetary system
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