BBC在线收听下载:美航天员将太空行走维修空间站冷却系统

短语讲解：

1. A bomb was planted on Pan Am 103 but it was an accident that the aircraft happened to come down on and around Lockerbie.

come down 下来，下落
例句：Will you not come down?
你到底下不下来？

2. There's been no independent verification of his comments, but security experts suggest his forces control at least some oil fields.
 
at least 至少
例句：Read at least 30 books.
至少读30本书。

3. Thailand's main opposition party the Democrats say they will not take part in the general election during February in a move likely to deepen the country's political crisis.

take part in 参加…，参与…活动
例句：To take part in your favorite activity helps self-admiration.
从事你所喜欢的活动有助于自我欣赏。

4. In the end, the voices calling for a boycott won the argument,but it is a risky decision.

call for 去接（某人）; 去取（某物）; 需要; 要求
例句：Chinese companies call for fairer treatment from foreigners.
中国公司要求更公平的对待外国人。

5. The company has been mining uranium for four decades in Niger and is negotiating a new ten-year contract with the government which will give it a greater share of the profits.

contract with 与…订立（某种协议或合同），与…建立（某种关系）
例句：They have entered into a contract with a firm. 
他们已与一家公司签订了合同。 

6. The body of a British surgeon who died in detention in Syria has been handed over to his family in Lebanon.

hand over 交出;  交付
例句：She got them to hand over all their money by a wicked deceit.
她用卑鄙的手段使他们把所有的钱移交给她. 

7. The breakdown ten days ago forced astronauts to turn off nonessential equipment.

turn off（把…）关掉; 完成
例句：When the taps turn off, who knows?
阀门何时会关上，谁知道呢？