cretaceous
英 [kr?'te???s]
美[kr?'te??s]
- adj. 白堊紀的；似白堊的
- n. 白堊紀；白堊系
中文詞源
Cretaceous 白堊紀的
詞源同crayon, 石灰，粉筆。
英文詞源
- cretaceous (adj.)
- 1670s, "chalky," from Latin cretaceus "chalk-like," from creta "chalk." As a geological period (with a capital C-), it was first used 1832. The extensive chalk beds of southeastern England were laid down during the Cretaceous.
雙語例句
- 1. Only in the tropics were numerous late Cretaceous groups extinguished during peaks in their evolution.
- 只是熱帶地區(qū)才有大批晚白堊紀生物類群正值其演化的極盛時期突然消亡.
來自辭典例句
- 2. The Cretaceous extinction was like a terrible streak of bad luck lasting millions of years.
- 白堊紀的生物絕滅,猶如一場持續(xù)千百萬年的可怕厄運.
來自辭典例句
- 3. Liupanshan Cretaceous basin is a mono - basin of Liupanshan inland overlapping basin.
- 六盤山白堊紀盆地是六盤山內(nèi)陸疊合盆地的一個單型盆地.
來自互聯(lián)網(wǎng)
- 4. The story takes place 6500 years ago in the Cretaceous period.
- 故事發(fā)生在6500萬年前的白堊紀晚期.
來自互聯(lián)網(wǎng)
- 5. So the researchers resorted to some techniques out of a Cretaceous CSI.
- 所以科學家只能借助于《犯罪現(xiàn)場調(diào)查:白堊紀篇》用到的技術(shù).
來自互聯(lián)網(wǎng)