正文

VOA慢速英语:Scientists Could be Closer to AIDS Cure

2016-04-04来源:VOA

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词汇讲解：

1. infect vt.使受影响，感染; 传染
例句：One bad boy may infect a whole class.
一个坏学生可能会影响全班。

2. explain vt.讲解，解释
例句：She sent him letter after letter to explain the delay.
她一封接一封地给他寄信解释推迟的原因。

3. appear vi.发表; 出现，显现
例句：They appear to be very sensitive to mildly corrosive environments.
它们似乎对轻度的腐蚀环境非常敏感。

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

5. afford vt.提供; 买得起; 担负得起
例句：Few could afford the luxury.
很少有人买得起这种奢侈品。