核心词汇
by/in virtue of 凭借(某种手段);由于,因为 例:He was exempt from charges by virtue of his youth/of being so young.他因年幼而获得免费. / She became a British citizen by virtue of her marriage.她借助婚姻成了英国公民。
extinction n. [U] *①(物种)灭绝,绝种 例:be threatened with extinction濒临灭绝 ②(信仰、生活方式等)遭毁灭,消失,消亡
hit on/upon ① (经长时间考虑后)突然想出(好主意) 例:In this way we hit upon over 20 useful methods of work.就这样我们想出了20多种有用的工作方法。 *② 偶然发现(某物) 例: At last she hit upon a room that suited them nicely.最后她找到了一间适合他们使用的房间。
in more thoroughgoing fashion以更彻底的方式;in a... fashion以……方式 例:Leave the building in an orderly fashion.要有秩序地走出楼去。
interfere with *① 妨碍,打扰 例:Don?t allow pleasure to interfere with duty.不要让娱乐妨碍了职责。 ② 干扰(广播或电视播送)
lay down ① 放下(武器等) 例:The general told the troops to lay down their arms.将军命令部队放下武器。 ② [常用被动态](正式地或坚决地)阐述,声明,规定 例:It is laid down that all applicants must sit a written exam.根据规定, 申请者一律需经笔试。 ③ 开始建造;开始做(奠基性的工作) 例:Crick and Watson laid down the foundations of modern genetic research.克里克和沃森为现代遗传学研究奠定了基础。 *④ (化石、地层等的)沉积形成
adj. 丰富的,充裕的