慢速英语:Cancer Drug Finds HIV Hidden in the Body

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短语讲解：

1.  We tell about another drug that may help reduce the number of HIV infections.

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。

2. The professor carried out the study with the help of four other teams of researchers.

carry out 履行
例句：No matter what we do, we must carry out our duties. 
无论干什么工作,我们都应履行自己的职责. 

3. We have placed a link to a summary of the report on our website, VOAspecialenglish.com.

link to 有关
例句：Research finds genetic link to some types of gum disease 
研究发现遗传与某些牙龈疾病有关 

4. One study involved more than four thousand seven hundred heterosexual couples.

more than 多于
例句：Rob likes apples more than bananas. 
罗勃对苹果比对香蕉还喜欢。 

5. DR. GOTTFRIED HIRNCHALL: “We have to really see how this could best be done and which would be the populations or the individuals where this would pay off.”

pay off 还清
例句：You'll have to pay off your old loan before being allowed a new one. 
你必须还清旧债，才能重新贷款。

6. At least twenty six drugs made from sea creatures are on the market or in development.

at least 至少
例句：At least, I sincerely hope so. 
至少我是真诚地这样希望的。