在线词典

显生代

Phanerozoic, geological eon lasting since the Cambrian 寒武紀|寒武纪[Han2 wu3 ji4], c. 540m year ago

英文释义

Phanerozoic, geological eon lasting since the Cambrian 寒武紀|寒武纪[Han2 wu3 ji4], c. 540m year ago