cretaceous
英 [kr?'te???s]
美[kr?'te??s]
- adj. 白堊紀(jì)的；似白堊的
- n. 白堊紀(jì)；白堊系
中文詞源
Cretaceous 白堊紀(jì)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(yǔ)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(jì)生物類(lèi)群正值其演化的極盛時(shí)期突然消亡.
來(lái)自辭典例句
- 2. The Cretaceous extinction was like a terrible streak of bad luck lasting millions of years.
- 白堊紀(jì)的生物絕滅,猶如一場(chǎng)持續(xù)千百萬(wàn)年的可怕厄運(yùn).
來(lái)自辭典例句
- 3. Liupanshan Cretaceous basin is a mono - basin of Liupanshan inland overlapping basin.
- 六盤(pán)山白堊紀(jì)盆地是六盤(pán)山內(nèi)陸疊合盆地的一個(gè)單型盆地.
來(lái)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(wàn)年前的白堊紀(jì)晚期.
來(lái)自互聯(lián)網(wǎng)
- 5. So the researchers resorted to some techniques out of a Cretaceous CSI.
- 所以科學(xué)家只能借助于《犯罪現(xiàn)場(chǎng)調(diào)查:白堊紀(jì)篇》用到的技術(shù).
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