Words — 1 found
xiǎn shēng zhòu
ㄒㄧㄢˇ ㄕㄥ ㄓㄡˋ
Simplified Traditional 显生宙 顯生宙
  1. 1. Phanerozoic, geological eon lasting since the Cambrian hánhán, c. 540m year ago