英语词汇Cretaceous的翻译、用法及例句-MX2U.com英汉词典

Cretaceous

adjective geology specialized uk/krɪˈteɪ.ʃəs/ us/krɪˈteɪ.ʃəs/

白垩纪的;来自白垩的（白垩纪为距今约1.44亿年至0.65亿年前的地质时期，有花植物首次出现）

from or referring to the period of time between around 144 and 65 million years ago, in which plants with flowers first appeared

the Cretaceous period 白垩纪

Cretaceous rocks 白垩纪时期的岩石

Sponges are often preserved inside flints, which were originally deposited as hard layers within the Cretaceous chalk.

It thrived in the late Cretaceous period only a few million years before all the dinosaurs on Earth became extinct.
There was an abundance of ammonites, considered index organisms of the uppermost Cretaceous environment.
The volcanoes in question may have erupted too early to account for the Cretaceous warming.

词汇	Cretaceous
释义	Cretaceous adjective geology specialized uk/krɪˈteɪ.ʃəs/ us/krɪˈteɪ.ʃəs/ 白垩纪的;来自白垩的（白垩纪为距今约1.44亿年至0.65亿年前的地质时期，有花植物首次出现） from or referring to the period of time between around 144 and 65 million years ago, in which plants with flowers first appeared the Cretaceous period 白垩纪 Cretaceous rocks 白垩纪时期的岩石 Sponges are often preserved inside flints, which were originally deposited as hard layers within the Cretaceous chalk. 更多例句 It thrived in the late Cretaceous period only a few million years before all the dinosaurs on Earth became extinct. There was an abundance of ammonites, considered index organisms of the uppermost Cretaceous environment. The volcanoes in question may have erupted too early to account for the Cretaceous warming.
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