BBC在线收听下载:法国多座核电站频现神秘无人机

短语讲解：

1. It follows a day of violent unrest in which protestors set fire to the Parliament Building and demanded the resignation of the President who's been in power for 27 years.

set fire to 放火烧， 点着了…; 激起; 燃点
例句：The invaders wantonly set fire to Yuan Ming Yuan. 
侵略者恣意妄为, 把圆明园付之一炬。 

2. First came a statement attributed to President B. C. saying he had sacked the government, declared a state of emergency and he would be holding talks with the opposition, but he did not step down; and then came a news conference held by the army Chief of Staff, who announced that the National Assembly had been dissolved, and that a transitional government would be set up for the next 12 months.

set up 建立; 准备;  安排
例句：At the pond's edge, Kathy and Evan set up for their picnic. 
凯西和艾凡在池塘边做好野餐准备。 

3. But there was no answer to the questions who was now in charge and who would lead the transition.

in charge 主管，看管
例句：I gather that he is the one in charge. 
我猜想他是负责的人。 

4. Two or three times she accepted something and then she backed out.

back out 不遵守（诺言、合约等）; 打退堂鼓
例句：He is trying to back out of his bargain. 
他在设法打其合约的退堂鼓。 

5. Some reports say as many as 220 fighters were killed. W. G. is in Baghdad.

as many as 和…一样多; 不下于
例句：They drew as many as four times that year. 
他们那一年四次打成平局。 

6. The Uganda rebel group the Allied Democratic Forces has been accused of carrying out the killings.

carry out 执行; 进行; 完成
例句：They should also carry out some fundamental reforms.
这些政府也应该执行一些基础性的改革。