慢速英语:US Considers Approving Drug to Prevent HIV

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1. prevent vt. 防止,预防
例句：Vitamin C is supposed to prevent colds.
维生素C被认为能预防感冒

2. effective adj. 有效的
例句：Window screens are effective in keeping out mosquitoes.
纱窗能有效地挡住蚊子。

3. approve vt. 赞成,同意;赞许
例句：The professor does not approve the government's foreignpolicy.
那位教授不赞成政府的外交政策。

4. evaluation n. 评价;估算
例句：I attempted an honest evaluation of my own life.
我试图如实地评价我自己的一生。

5. include vt. 包括,包含
例句：The price includes both house and furniture.
价钱包括房子和家具。

6. strategy n. 战略;战略学
例句：He is an expert in military strategy.
他是军事战略专家。

7. drug n. 药品,药材
例句: Why not try this new drug?
为什么不试一试这种新药?