President's Radio Address THE PRESIDENT: Good morning. This weekend, families across America are coming together to celebrate Easter. This is the most important holiday in the Christian faith. And du
But you can imagine looking inside the brain. And here's inside the brain. 不过我们能想象大脑内部发生了什么。图上就是大脑内部。 You might have a little predictor, a neural simulator, of the physics of your body and your senses
Hi everybody. Seven years ago, the American auto industry was on the brink of collapse. Plants were closing. Hundreds of thousands of workers were getting laid off from jobs that had been their ticket
