noun🔗Share小行星，矮行星。 An astronomical object in direct orbit around the Sun that is not a planet or a comet."Astronomers study minor planets like asteroids to learn more about the early solar system. "天文学家研究像小行星这样的小行星或矮行星，以更多地了解早期太阳系。astronomyspaceChat with AIVocabulary GamePractice Reading
