VOA慢速英语:How Early Treatment Can Limit the Spread of HIV

词汇讲解：

1. risk n. 危险(性), 风险
例句：You are taking a big risk driving so fast.
你开车这样快是在冒很大的危险。

2. couple n. 夫妻, 情侣
例句：The old couple is never fed up with going to the same park every day.
这对老夫妻每天都去同一个公园, 从不厌烦。

3. involve vt. 使参与, 牵涉
例句：The demonstration involved 200 students.
有200名学生参加了这次示威游行。

4. combination n. 结合, 组合
例句：It could be the winning combination.
这本是胜利的组合。

5. antiretroviral adj. 抗逆转录病毒的,抗后病毒的
例句：That is especially true for antiretroviral therapy.
这些对于反转录酶疗法的确相当正确。

6. counseling n. 咨询服务,咨询,辅导
例句：Today many couples also receive counseling during engagement．
今天很多未婚夫妻在他们订婚期间也会寻求婚姻咨询。

7. last vi. 延续; 继续
例句：She felt sure that their friendship would last.
她确信他们的友谊会日久天长。

8. reduction n. 减少, 缩小; 减少的量, 降价
例句：The reduction of unemployment should be paramount in the government's economic policy. 
降低失业率应是政府经济政策的头等大事。 

9. formulation n. 规划;构想
例句：This formulation is perfectly correct.
这是完全正确的规定。

10. stretch v. 伸展; 拉紧；延伸
例句：The road stretches uphill at a steep slope.
这条路以陡峭的坡度向山上延伸。

11. suppress vt. 阻止…的生长(或发展), 压制；阻止；抑制
例句：Even the grave young woman could not suppress a smile.
连那个严肃的年轻妇女都禁不住笑了。