BBC news 2015-03-29 加文本

短语讲解：

1. However, Mr Jouty said that it would take several days to carry out even a basic analysis of the recordings, and more detailed examination could take weeks or months.

carry out 履行
例句：No matter what we do, we must carry out our duties. 
无论干什么工作,我们都应履行自己的职责. 

2. The presidential and parliamentary polls are expected to be the most tightly contested since military rule ended in 1999.

be expected to 被期待做某事; 有望做某事; 期许
例句：I shall be expected to shell out the money for the party. 
我将要支付这个集会的费用。 

3. Voting is due to take place that Nigeria battles insurgency in northeast region.

take place 发生
例句：Earthquakes take place far underground. 
地震则发生在地球的极深处。 

4. Sergeant Bowe Bergdahl was released by the Taliban in May last year in exchange for five detainees at Guantanamo Bay, the move sparked outrage among law makers of both parties who said such a prisoner swap could put other Americans at risk, but administration official said the decision was made because of fears that Bergdahl’s life was in an immediate danger.

in exchange for 交换
例句：He gave me an apple in exchange for a cake. 
他给我一个苹果，换一块蛋糕。 
because of 因为，由于
例句：Because of the warm and sunny weather, oranges grow very well here. 
因为这里气候温暖，阳光充足，桔子长得很好。 

5. But the report said measures taken in Scotland to protect blood supplies and screen them for HIV held up well in comparison to other countries pointing out the both viruses were relatively new then.

in comparison to 与…相比
例句：We are all handicapped in comparison to her typing skills! 
与她打字的技能相比，我们才是废人！