BBC在线收听下载:深陷作弊丑闻 穆迪下调大众信贷评级

短语讲解：

1. Britain has said the Russian airline which crashed in Egypt on Saturday maywell have been brought down by an explosive device.

bring down （价） 降; （某物，某人）抬下（楼、山）
例句：Measures are taken to bring down the workshop.
车间里采取了降温措施。

2. The Iranian president Hassan Rouhani has questioned the arrestof a number of journalists on Tuesday.

a number of 一些; 许多的
例句：A number of local personalities were present at the meeting.
一些当地名人出席了会议。

3. Mexico Supreme Court had voted in favor of allowing a groupof activists to grow and distribute Marijuana for their personal use.

in favor of （某人或某事物） 赞成[支持]; 以…取代
例句：I am in favor of woman's suffrage.
我赞成妇女参政。

4. It was based on the freedom of citizens tobe able to choose what they consume.

base on 使建立在…基础上
例句："Base on Yunfu, orient to the world and aim at the future."
立足云浮,面向世界,走向未来。