cretaceous是什么意思 cretaceous怎么读
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英 [krɪ'teɪʃəs]
英 [krɪ'teɪʃəs]
美 [krɪ'teɪʃəs]
美 [krɪ'teɪʃəs]
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adj. 白垩的；白垩纪的
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n. 白垩纪；白垩系
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副词：cretaceously
cretaceous的英文翻译是什么意思，词典释义与在线翻译
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
cretaceous的用法和样例
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
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