正文

VOA慢速英语:Diseases of Cassava Wreak Havoc in Africa

2013-10-22来源:VOA

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词汇讲解：

1. increase vt. 增加，增大
例句：Saudi arabia is driving the increase.
沙特正在推动提高产量上限。

2. affect vt.影响；假装
例句：Slowing exports will affect domestic spending.
出口减少会影响国内消费。

3. require vt.要求；需要
例句：That will require a political battle.
这需要一场政治战役。

4. invest vt. 投资；花费
例句：We also invest in commodities and gold.
我们还投资大宗商品和黄金。

5. slug n.子弹，金属块
例句：The answer was to get the slug spinning.
答案很简单：让子弹旋转起来。

6. reinvent vt.（在不知他人已发明的情况下）重复发明，彻底改造
例句：The man is constantly able to reinvent himself.
这人能够频繁地改头换面。

7. invade vt. 侵入，侵略
例句：They can invade the digestive tract and block nutritional uptake.
它们可以入侵消化道，然后阻止营养的摄取。