Precambrian
Precambrian /priˈkæm.bɹi.ən/ nghĩa là tiền Cambri
Các nghĩa
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tiền Cambri
Relating to the time and geology dated before the Phanerozoic
When you look at a Precambrian trilobite in the lobby of a New York bank, it is difficult to speculate about its primeval environment.