VOA慢速英语:New Research Hopes to Speed Development of HIV Vaccine

短语讲解：

1. The scientists hope their research with these mice will speed up development of a vaccine to prevent human immunodeficiency virus, or HIV.

speed up (使)加快速度
例句：They have speeded up production.
他们加快了生产速度。

2. Scientists from the Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard are carrying out the new research.

carry out 实现
例句：She had finally carried out her promise to quit smoking.
她最终实现了戒烟的诺言。

3. By using the new experimental mice, the researchers hope to learn what it is about the immune systems of these “elite controllers” that causes them to deal with the HIV virus better than others.

deal with 与...交涉,交易;应付;处理
例句：He has learnt to deal properly with all kinds of complicated situations.
他已学会恰当地应付各种复杂局面。

4. Mr. Allen and the other researchers hope further studies with the “humanized” mouse will lead to an HIV vaccine.

lead to 导致
例句：Smoking can lead to lung cancer.
抽烟可能导致肺癌。