BBC在线收听下载:美监管机构对互联网服务商实施新的严厉措施

短语讲解：

1. Dressed in a black robe, his face almost entirely covered by a balaclava, Emwazi appears in at least 7 Islamic State videos in which hostages including the British aid workers Alan Henning and David Haines were beheaded.

at least 至少
例句：At least, I sincerely hope so. 
至少我是真诚地这样希望的。  
 
2. US Intelligence Agencies have placed cyber attacks at the top of their lists of threats to United States, posing a greater risk than terrorism.

at the top of 在...上方
例句：The birds chirp merrily at the top of tree. 
鸟儿在枝头欢快地啾啾鸣唱。 

3. A judge in Argentina has dismissed claims that President Cristina Fernandez de Kirchner and her Foreign Minister covered up alleged involvement by Iran in the deadly bombing of a jewish centre in Buenos Aires 20 years ago.

cover up 盖起来;  裹住; 掩盖;  掩饰
例句：He tried to cover up his guilt by lying.
他企图用说谎来掩盖罪行. 

4. Judge Daniel Rafecas said he was throwing out the case because no crime had occurred.

throw out 提出（暗示、建议等）; 掷出
例句：Maybe, I should throw out my grammar books and start from scratch.
也许我应该扔掉我的语法书,重新开始。 

5. Critics including senior Republicans complain it will drive up consumer costs and discourage industry investment.

drive up 驱车来到; 使…上升
例句：In the short term, it will drive up unemployment. 
在短期内，它将加剧失业问题。 

6. In Jos, 3 bombs were thrown from a car, also killing people near bus stations as well as the university.

as well as 也，又
例句：Let' s share in our troubles as well as in our joys. 
让我们同甘共苦吧。