这是我们一生之中的一个非常难过的时刻。

This is a frightful moment in our life.

youdao

我们一生之中，要牢记和要忘记的东西一样多。

It's the equally to remember and forget something in our life.

youdao

Top在我们一生之中，我们都会做出许多自己后来可能会后悔的选择。

During the course of our lives, we must make many choices that we may come to regret.

youdao

I think a lot of us, we do what we can in this lifetime, hoping that we're are part of a long trajectory of a moral arch toward justice What would like to see in America in 20 years?

我认为我们之中很多人在一生中会竭力奋斗，希望我们能够沿着道德，正义的,的轨迹发展,您如何构想美国20年后的情景呢？

普林斯顿公开课 - 人性课程节选