BBC在线收听下载:美国调查俄罗斯黑客入侵事件

短语讲解：

1. At least 14 people are dead. Many more have been taken to local hospitals.

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. The White House says president Obama will look at a number of ways of responding to what it believes was Russian hacking of Democratic Party computers.

a number of 一些; 许多的
例句：Two significant constants have been found in a number of research studies.
若干研究已经发现了两个重要常量。