Chinese

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primary; first; fundamental
primary; first; fundamental; dollar; (dynasty)
 
antiquity; ancient times; period of Chinese history from antiquity until the Opium Wars in 1840's
simp. and trad.
(元古代)
古代
 
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Proper noun

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元古代

  1. Alternative name for 元古宙 (Yuángǔ Zhòu).