Precambrian
n. 前寒武纪, 前寒武纪岩
发音
UK
/priːˈkam.bɹɪ.ən/
US
/priˈkæm.bɹi.ən/
CA
/priˈkeɪm.bɹi.ən/
CA
/priˈkæm.bɹi.ən/
别名
Pre-Cambrian
释义与例句
adj.
-
1.
Relating to the time and geology dated before the Phanerozoic
非正式 地质
name
-
1.
The Precambrian supereon; spanning from the formation of the Earth around 4.6 billion years ago to the emergence of hard-shelled creatures 541 million years ago.
前寒武纪
地质
词源
From pre- + Cambrian.
来源:wiktionary