cretaceous

听听怎么读

英 [krɪ'teɪʃəs]

美 [krɪ'teɪʃəs]

是什么意思

adj.

白垩的，白垩纪的；

白垩纪，白垩系；

英英释义

cretaceous[ kri'teiʃəs ]

n.from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
同义词：Cretaceous period
adj.
- abounding in chalk
- of or relating to or denoting the third period of the Mesozoic era

学习怎么用

词组短语

cretaceous period白垩纪

双语例句

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

权威例句

Cretaceous-Tertiary boundary event: Evidence for a short time scale
A BOTANICAL INDEX OF CRETACEOUS AND TERTIARY CLIMATES
Extraterrestrial Cause for the Cretaceous-Tertiary Extinction
Impacts of the Cretaceous Terrestrial Revolution and KPg extinction on mammal diversification.
EXTRATERRESTRIAL CAUSE FOR THE CRETACEOUS-TERTIARY EXTINCTION: EXPERIMENT AND THEORY
Nature and significance of the Early Cretaceous giant igneous event in eastern China
A new geomagnetic polarity time scale for the Late Cretaceous and Cenozoic
The Theropod Ancestry of Birds: New Evidence from the Late Cretaceous of Madagascar
Revised calibration of geomagnetic polarity time scale for the Late Cretaceous and Cenozoic
Exhumation of the ultrahigh-pressure continental crust in east central China: Cretaceous and Cenozoic unroofing and the Tan-Lu fault