VOA常速英语:SIV Vaccine Holds Promise for AIDS

 词汇讲解：

1. vaccine n. 疫苗
例句：She takes a vaccine against influenza every fall.
她每年秋季接种流感疫苗。

2. infection n. 传染, 感染
例句：White blood cells fight infection.
白血球抵抗感染。

3. virus n. 病毒
例句：He is suffering from a virus infection.
他受到病毒感染。

4. elusive adj. 难以捉摸的;难以找到的;不易记住的
例句：He remained as elusive as ever.
他还是那样令人难以捉摸。

5. foothold n. 立足点
例句：It is not easy to get a foothold as an anchorman.
一个电视节目主持人要站住脚可不容易。

6. intercept vt. 拦截, 截住, 截击
例句：Reporters intercepted him as he tried to leave by the rear entrance.
他想从后门溜走, 记者把他截住了。

7. recruitment n. 补充
例句：One source of recruitment is the civil service.
政府文职部门是招聘的部门之一。

8. bacterial adj. 细菌的
例句：Brain lesions can be caused by bacterial infections.
大脑损伤可能由细菌感染引起。

9. strategy n. 战略, 策略
例句：By careful strategy she negotiated a substantial pay rise.
她精心策划后, 谈妥了大幅增加工资的事。

10. dormant adj. 潜伏的,蛰服的,休眠的,蛰伏的,暂停活动的
例句：Many living things are dormant in winter.
很多生物到了冬季都休眠。

11. uNPRecedented adj. 前所未有的；空前的；没有先例的
例句：The air crash caused an uNPRecedented number of deaths.
这次空难的死亡人数是空前的。

12. vaccinate vt. 给…接种疫苗
例句：Were you vaccinated against smallpox as a child?
你小时候打过天花疫苗吗？