| 释义 |
白垩纪 Bái'èjìgeol. Cretaceous period白垩纪BáièjìCretaceous (geological period 140-65m years ago)白垩纪【地质】Cretaceous period白垩纪a.cretaceous[C-] 【地】白垩纪的；白垩系的n.cretaceous[the C-] 【地】白垩纪；白垩系；白垩纪岩石白垩纪1. [Geology] the Cretaceous period; the Cretaceous白垩纪Cretaceous peri |