1.artificial a.人造的;虚伪的;武断的
This orange drink contains no artificial flavourings.
这种橙汁饮品不含人工调味料。
2.scratch n.抓痕;乱写;抓的声音
He pretended to scratch his ear.
他假装搔耳朵。
3.intensive a.密集的;彻底的;精细的
We concentrated intensive fire on the enemy.
我们集中密集的火力向敌人攻击。
4.population n.人口
What is the population of this country?
这个国家的人口是多少?
5.extract v.摘录;提取;拔出;榨出;选取
She extracted a small notebook from her handbag.
她从手提包里取出了一个小笔记本。