VOA慢速英语:Eight Million People Now Being Treated for HIV

1.  And I’m Mario Ritter. The nineteenth International AIDS Conference took place last month in Washington, DC.

take place 发生;举行
例句：When will the basketball game take place?
篮球赛何时举行?

2.  Today, we tell about some of the latest developments in the fight against AIDS and HIV, the virus that causes the disease.

tell about 讲述
例句：He had learned how to tell about them. 
他早已学会了如何评论她们。

3. We are trying to make sure that the framework, investment framework, we are using with the countries becomes smarter.”

make sure 查明;设法确保,确定
例句：I'll have to make sure I'm not chased. 
我一定想办法不叫他们发现。 

4. But some of those most in need of HIV treatment and prevention are unable to get them because of their social standing.

because of 因为
例句：Because of the storm he didn't go there.
因为暴风雨他没有去那儿。

5. Dr. Hirnschall says the World Health Organization is writing rules to help developing countries care for and treat those most at risk of infection.

at risk 处于危险中
例句：The disease is spreading, and all children under 5 are at risk.
疾病正在蔓延,所有五岁以下的小孩都有被传染的危险。

6. That was in comparison to those who took a placebo or harmless substance.     

in comparison 相比之下
例句：He is quite tall in comparison with his classmates. 
与他的同学相比,他相当高。