慢速英语:Scientists Could be Closer to AIDS Cure

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1. substance n. 物质，材料; 实质
例句：A corrective for overacidity is an alkaline substance.
酸性过度的中和剂是碱性物质。

2. discovery n.发现，发觉; （剧情的） 发展; 被发现的事物
例句：The discovery is due to Newton.
该发现应归功于牛顿。

3. eliminate vt.淘汰; 排除，消除
例句：First he had to eliminate his would-be successors.
首先他得把要想僭越此位的人除掉。

4. appear vi.发表; 出现，显现
例句：Stop piling it on:it's not half as bad as you make it appear.
别夸大其词了,事情根本不象你所说的那么坏。

5. believe vt.相信; 信任; 以为
例句：Whom should we believe?
我们应该相信谁呢？