| 释义 |
Priscoan
基本英英近义反义
n.冥古代¹⁰⁰
Noun:
the earliest eon in the history of the Earth from the first accretion of planetary material around 4,600 million years ago until the date of the oldest known rocks about 3,800 million years ago; no evidence of life近义词 Hadean地狱的 |