| 单词 | astronomy |
| 释义 | Word Frequency astronomy(əˈstrɒnəmɪ) noun the scientific study of the individual celestial bodies (excluding the earth) and of the universe as a whole. Its various branches include astrometry, astrodynamics, cosmology, and astrophysics Word origin C13: from Old French astronomie, from Latin astronomia, from Greek; see astro-, -nomy |
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