BBC在线收听下载:韩国总统朴槿惠就“闺蜜干政事件”再次道歉

短语讲解：

1. There were reports of a number of injuries.

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。

2. Scientists say the world will need to cut greenhouse gas emissions by as much as 14 billion tons by 2030 to meet the target.

as much as 差不多
例句：I try to ward off fatigue by resting as much as possible.
为了防止疲劳，我尽可能多休息。