Difficult circumstances serve as a textbook of life for people.

译文：贫穷的人不用学俭朴，自会俭朴，卑贱的人不用学谦恭，自会谦恭。

母亲的心是一个深渊，在它的最深处你总会得到宽恕。

Innovation requires both fundamental research and practical application.

The future of CRISPR is bright, and I believe it will continue to revolutionize medicine and agriculture.

We need to be vigilant about the security of the Internet.

我不相信运气，我相信准备遇到机会。