Hi, everybody. Today, I want to talk with you about the crisis in Puerto Rico and why it matters to all of us. Puerto Ricans are American citizens, just like folks in Maine or Oklahoma or New Mexico.

I got the camera angle wrong. 我把相机角度弄错了。 That one is just amateur stuff, but what she was saying, as you could make out, was about neurons, with her hands were like that, 那是张业余作品，但是她说话的内容，你们能听得出来，是关于神

I'm a gamer, so I like to have goals. I like special missions and secret objectives. 我是一个游戏玩家，因此我喜欢得分。我喜欢特殊的使命和神秘的目标。 So here's my special mission for this talk: 因此，我这次演讲的特殊使命是： I'm going to try to in

Hi, everybody. In 1620, a small band of pilgrims came to this continent, refugees who had fled persecution and violence in their native land. Nearly 400 years later, we remember their part in the Amer

I must say that before I went to the U.S., I didn't consciously identify as African. 我不得不强调，在我前往美国之前，我从来没有有意识地把自己当作个非洲人。 But in the U.S., whenever Africa came up, people turned to me. 但在美国的时候，每当人们提到“非