It was an act of courage as well as pragmatism.

这一举动既需要勇气，又要有务实精神。

Every person stood to applaud his unforgettable act of courage.

大家都起身对他令人难忘的英勇之举交口称赞。

They wanted to scan your brain while you perform an act of courage.

他们想要得到你在采取勇敢举动时大脑的图像。

To say, Oh wow what an unbelievable play! It was an unbelievable book, unbelievable film, unbelievable act of courage... Really?

说“噢哇，多么难以置信的戏剧！”“这是本难以置信的书，难以置信的电影，难以置信的英勇之举...”当真如此吗？