BBC在线收听下载:美国联邦卫生机构应对埃博拉的爆发

1. It's been impossible so far.

so far 到目前为止; 迄今为止
例句：So far, the strategy has worked.
到目前为止，这个策略很有效。

2. Thomas Frieden told Congress that the agency has more than 200 people working on the disease at its headquarters in Georgia, and it will soon have 50 experts in West Africa, where Ebola has killed more than 900 people.

more than 多于
例句：Rob likes apples more than bananas. 
罗勃对苹果比对香蕉还喜欢。 

3. Mr. Rasmussen called on Russia to stop supporting separatists, pull back its troops from Ukraine's border and, as he put it, step back from the brink.

step back 后退
例句：So take a step back and think about your goals.
所以后退一步，认真思索你的目标。

4. The Argentine government has asked the International Court of Justice in the Hague to launch proceedings against the United States, which Buenos Aires accuses of breaching of Argentina's sovereignty by preventing it from servicing its restructured international debt.

prevent from 阻止， 防止
例句：We must take steps to prevent this from happening again. 
我们一定要采取措施，使这样的事不再发生。 

5. The cremated remains of nine victims of a mass cult suicide in Guyana in 1978 have turned up in a former funeral home in the United States.

turn up 开大; 翻起; 出现
例句：I've been hoping we might turn up some clue here. 
我希望我们能在这里摸到一些线索。 

6. The ashes were discovered in the city of Dover in the state of Delaware when local officials were inspecting a lot of more than 30 small containers.

a lot of 大量
例句：Considerate products don’t ask a lot of questions 
体贴的软件不问过多问题 

7. His magic seller turned out to be his kitchen, where he set up a lab to blend cheaper wines.

turn out 制造; 关灯; 结果是
例句：None of those assertions turn out to be accurate.
这些断言没有哪一个证明是准确的。