慢速英语:Containing Ebola: Window of Opportunity Closing

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1. expand vt.使…变大; 扩张; 详述
例句：My duties continue to expand.
我的职能继续扩张。

2. contain vt.包含，容纳
例句：Some lipsticks contain fish scales.
有些唇膏中含有鱼鳞。

3. opportunity n.机会; 适当的时机良机
例句：That is a missed opportunity.
这样就错失了良机。

4. infection n.<医>传染，感染
例句：Wheat rust is a fungal infection.
谷物锈病是一种真菌感染。

5. treat vt.处理; 探讨
例句：You ought to treat these matters with candour. 
你应当公正地处理这些事情。 

6. release vt.释放; 放开
例句：He had won his first release from the fences of home. 
他第一次成功地脱出家庭的樊笼。 

7. appear vi.出现，显现
例句：At least you appear classy.
这样至少你显得高贵。