慢速英语:More Low Cost Anti-AIDS Drugs Mean More People Treated

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词汇讲解：

1. infect vt. 使受影响;感染
例句：The captain's courage infected his men.
船长的勇气感染了他的船员。

2. disease n. 病,疾病
例句：Most diseases could be wiped out.
大多数疾病是可以被消灭的。

3. influence n. 影响,作用
例句：The influence of climate on crops are self-evident.
气候对农作物的影响是不证自明的。 

4. provide vt. 提供
例句：On Sundays his landlady provided dinner as well as breakfast.
星期天,他的女房东不但供给早餐,还供给晚餐。

5. require vt. 需要
例句：The roof requires repairing.
屋顶需要修理了。

6. purchase vt. 买,购买
例句：He purchased this stamp at an auction.
他在拍卖会中购得这枚邮票。