奧陶紀

See also: 奥陶纪

Chinese

the Ordovician
 
discipline; age; era; period; order; record
trad. (奧陶紀) 奧陶
simp. (奥陶纪) 奥陶

Pronunciation


Proper noun

奧陶紀

  1. the Ordovician period

See also

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