cretaceous extinction的意思

cretaceous extinction中文翻譯：

白堊紀滅絕

相似詞語短語

threat of extinction───滅絕的威脅

；ink of extinction───瀕臨滅絕

near extinction───瀕臨滅絕

continuous function───[數]連續函數；連續功能

vacuum extraction───真空抽提

class distinction───階級界限

continuous functions───[數]連續函數；連續功能

contradistinction───n.對比；對比的區別

crucial distinction───關鍵區別

雙語使用場景

One such lacuna has been the absence of well-preserved feathers from the Cretaceous—the period between 145m and 65m years ago that ended with the mass extinction that wiped out the dinosaurs.───其中之一便是一直杳無蹤跡的來自白堊紀時期的保存良好的的羽毛化石。白堊紀處于一億四千五百萬年前到六千五百萬年前之間，以恐龍的大規模滅絕為結束標志。

most studied mass extinction, between the Cretaceous and Paleogene periods about 65 million years ago, killed off the dinosaurs and made room for mammals to rapidly diversify and evolve.───研究最多的物種大規模滅絕，是發生在白堊紀與第三紀的兩個階段之間，約6500萬年前的時期，這時恐龍消滅了，它讓出位置供哺乳類動物迅速地擴大品種和進化。

An extraterrestrial impact is most closely linked to the Cretaceous extinction event.───天外來客對地球的撞擊與白堊紀的物種滅絕事件有著最為密切的聯系。

英語使用場景

The Cretaceous extinction was like a terrible streak of bad luck lasting millions of years.

One possible case of paired impacts has been widely discussed in connection with the Cretaceous extinction event.