VOA常速英语:Potent Antibodies Offer New AIDS Vaccine Design

短语讲解：

1. The antibodies were isolated from individuals already infected with HIV.

isolate from使孤立于
例句：Do not isolate yourself from others.
不要把自己孤立起来。
infect with把…传染给…
例句：The man has been infected with cholera.
这人已染上了霍乱。

2. Dr. Wayne Koff says the goal is to find a vaccine that will help the immune system fend off an HIV infection.

fend off挡开
例句：He neatly fended off a jab at his chest.
他利落地挡开了当胸的一击。

3. Most vaccines work in terms of stimulating something known as antibody, which is a protein substance in the body.

in terms of就…而言, 从…方面说来
例句：He referred to your work in terms of high praise.
他对你的工作大加赞扬。

4. And so instead of a single strain or a couple of strains, we have millions of strains.

instead of (用…)代替…, (是…)而不是…, (用…)而不用…
例句：Shall we have fish instead of meat today?
今天我们不吃肉吃鱼好吗?

5. And these antibodies then are known as broadly neutralizing antibodies.

be known as被认为是
例句：His grandfather was known as a brave seaman.
他的爷爷是一名勇敢的水手。

6. We then went back to these individuals and we took additional samples of blood and from those individuals we identified these broadly neutralizing antibodies.

go back to回转, 回顾, 追溯
例句：They went back to the scenes of their childhood.
他们回忆了童年的情景。

7. In the case of individuals that are already HIV infected, the virus is always one step in front of the immune system

in the case of至于…, 在……的情况下, 就…来说, 就……而言, 对……而言
例句：It's the kind of story we think of as myth. But in the case of Lincoln, the story is true.
我们把这类故事视为神话, 但就林肯来说, 这故事却是真实的。

8. The real challenge for us and from a vaccine point of view is to ensure that the immune system is primed in advance of the virus as opposed to after HIV infection.

point of view观点
例句：I understood your point of view.
我理解你的观点。
in advance of在...的前面
例句：He walked in advance of his wife.
他走在他妻子的前面。