BBC在线收听下载:奥巴马宣布美国减排计划案

短语讲解：

1. This is one of those rare issues, because of its magnitude, because of its scope.

because of 因为，由于
例句：Because of their relative rarity, they are often missed.
因为相对少见，它们常被漏诊。

2. That if we do get it right, we may not be able to reverse, and we may not be able to adapt sufficiently.

be able to 能够
例句：The car would be unlikely to be able to make the turn.
汽车未必能作这样的转弯。

3. The opposition boycotted the vote, but the Prime Minister Isa Mustafa said that finding the truth about some of the allegations against the now disbanded Kosovo liberation army was a challenge that Kosovans had to deal with.

deal with 处理
例句：Rangers must be ready to deal with emergencies of all kinds.
国家公园管理员必须随时准备好处理各种紧急情况。