I don't let setbacks stop me. They make me stronger.
当我们破坏林地时,我们失去的不是树木,而是地球故事的篇章。
The challenge of our time is to create a sustainable energy future.
过去是一个陌生的国度;那里的人做事方式不同。
The challenge of modern cryptography is not just to secure communication, but to do so in a way that is both efficient and scalable.