VOA慢速英语:US Health Officials: Zika 'Scarier Than We Thought'

短语讲解：

1. Officials say they are worried about the spread of the disease.

worry about 担忧，烦恼
例句：Don't worry about being late. It's fine.
别为迟到担心了 没有关系。

2. Fauci said if Congress does not act, health workers will not be able to stop Zika from spreading.

be able to 能够
例句：We must be able to stay impartial at all times.
我们必须经常保持公正的态度。

3. We have to be, as a country, ready to support response to more than one outbreak at a time.

at a time 依次， 逐一， 每次
例句：Can I borrow two books at a time ?
我能一次借两本书吗？

4. Schuchat said that about 5,000 packages have been given out in Puerto Rico.

give out 分发; 公布; 停止运行
例句：Please help me give out these test papers.
请帮我分发这些试卷。