单词
cretaceous
读音
krɪˈteɪʃəs
美式
英式
词根
无
释义
adj. 白垩纪的；似白垩的 n. 白垩纪；白垩系
例句
These animals were not as sensitive to climate changes in the Cretaceous period as they are today.
这些动物在白垩纪对气候变化不像今天这样敏感。
Scientists have linked the mass extinction at the end of the Cretaceous with a meteorite impact on Earth.
科学家将白垩纪末期的大灭绝与地球上的陨石撞击联系起来。
This change in plankton found in marine deposits is what marks the boundary between the Cretaceous and the Tertiary.
海洋沉积物中浮游生物的这种变化标志着白垩纪和第三纪的分界线。
These animals were not as sensitive to climate changes in the Cretaceous period as they are today.
这些动物在白垩纪对气候变化不像今天这样敏感。
Scientists have linked the mass extinction at the end of the Cretaceous with a meteorite impact on Earth.
科学家将白垩纪末期的大灭绝与地球上的陨石撞击联系起来。
This change in plankton found in marine deposits is what marks the boundary between the Cretaceous and the Tertiary.
海洋沉积物中浮游生物的这种变化标志着白垩纪和第三纪的分界线。
强化记忆
无
看视频学发音
there was a sudden, violent change to the environment.We call it the Cretaceous extinction event.That's when the dinosaurs went extinct,
what was the time difference between these white rocks,which held creatures of the Cretaceous period,and the pink rocks above, which held Tertiary fossils.
shall we?The Cretaceous Hot Greenhouse, 92 million years ago,was so warm, forests covered Antarctica.
(Laughter)So when it comes down to our end Cretaceous,
"If we go over there, we should be in the Jurassic,"or, "If we go up over that hill, we should find the Cretaceous."So now, if you want to find trilobites,
所属分类
出国,其他
所在词典
