英语单词分类 轻松记单词

cretaceous

副词: cretaceously

cretaceous基本解释

adj.白垩的;白垩纪的

n.白垩纪;白垩系

cretaceous同义词

cretaceous相关例句

用作形容词(adj.)
  • The story takes place 6500 years ago in the late Cretaceous period.
    故事发生在6500万年前的白垩纪晚期。
用作名词(n.)
  • From the Cretaceous, Tarim basin began the new evolutional stage of foreland basin.
    从白垩纪初期开始

cretaceous英英释义

Noun:
  • from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants

Adjective:
  • abounding in chalk

  • of or relating to or denoting the third period of the Mesozoic era