Definition
月球 (yuèqiú) is the formal, scientific term for the moon as a celestial body — used in astronomy, geography, and formal writing. In everyday conversation, 月亮 (yuèliang) is the common word for the moon you see in the sky. 月 (yuè) alone is more literary and appears in compounds (e.g., 月光 'moonlight').
noun
the moon (celestial body)
Examples
- 月球。Kēxuéjiā zhèngzài yánjiū yuè qiú de biǎomiàn.Scientists are studying the surface of the moon.
- 月球。yuè qiú shàng méiyǒu kōngqì hé shuǐ.There is no air or water on the moon.
- ，月球。Cóng dìqiú shàng kàn, yuè qiú de dàxiǎo huì biànhuà.Seen from Earth, the size of the moon changes.
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