Today,scientists say a person dropped on the top of the mountain would live no more than ten minutes.

VOA: special.2010.06.30

It was impossible-- doctors and scientists showed, runners, athletes, the top-ones in the world proved that the doctors were right.

那是不可能的，医生和科学家证明了，跑手，运动员，世上顶尖选手证明了医生们是对的。

哈佛公开课 - 幸福课课程节选

Many of Germany's top rocket scientists came to the United States after the war.

VOA: special.2009.06.10