The UN health agencies say it could cost about $39 billion over the next six years to scale up the recommended measures in the 68 high-risk developing countries.

VOA: standard.2009.11.02

And then he, at the top of it-- switched over into a chromatic scale.

然后,在顶端,转换到了半音音阶

耶鲁公开课 - 聆听音乐课程节选

He probably over-judged the scale of that aristocracy.

他也许夸大了这群特权阶级的人数

耶鲁公开课 - 美国内战与重建课程节选