"cretaceous" in Chinese (Traditional)
白堊紀
Definition
指的是大約1.45億到6600萬年前的地質時期,當時恐龍十分繁盛,並且有許多白堊(石灰)沉積形成。
Usage Notes (Chinese (Traditional))
主要用於科學與教育領域,尤其是地質學與古生物學。指地質時期時首字母大寫(「白堊紀」);做形容詞時一般為小寫(「白堊紀岩石」)。常見搭配:「白堊紀時期」。
Examples
Many famous dinosaurs lived during the Cretaceous period.
許多著名的恐龍生活在**白堊紀**時期。
The Cretaceous ended about 66 million years ago.
**白堊紀**大約在6600萬年前結束。
Scientists study Cretaceous rocks to learn about Earth’s history.
科學家研究**白堊紀**岩石以瞭解地球歷史。
Did you know flowering plants first appeared in the Cretaceous?
你知道開花植物是在**白堊紀**首次出現的嗎?
There are many Cretaceous fossils on display at the museum.
博物館裡展出了許多**白堊紀**化石。
That cliff is made mostly of Cretaceous chalk deposits.
那座懸崖主要由**白堊紀**的白堊沉積物構成。