In the event of moon disaster 倘若有月球灾难 Fate has ordained that the men who went to the moon to explore in peace will stay on the moon to rest in peace. 命中注定，那些和平探索月球的人将在月球永远安息。 These brave men, Neil Arm

Neither immigration nor Islamic extremism are impossible to deal with. 移民问题和伊斯兰恐怖主义都不是不可能解决的 Join me now on one last trip, this time to Mexico. 现在跟我来看看最后的这个例子，这一次我们转向墨西哥 Now, of our three stories, thi

And that's how the five senses graph works. 这就是五感图的工作方式。 Now, for a period of three years, I gathered data, not just me but also some of my friends, 到现在我收集数据有三年时间了，不仅我自己还有我的一些朋友， and I used to teach i

I want to congratulate all the athletes here today for making the 2010 U.S. Olympic and Paralympic（残奥会） Teams – you are truly the best of the best. All of us are incredibly proud of everything y

I'm here today to talk about the two ideas that, at least based on my observations at Khan Academy, 今天，我要分享两个观点，至少基于我对可汗学院的观察得出的， are kind of the core, or the key leverage points for learning. 有关于学习的核