So the reason there's a time difference on Mars right now, 火星上的时间和我们现在的时间是不一样的， from the time that we're at is because the Martian day is longer than the Earth day. 因为火星的一天比地球要长。 Our Earth day is 24 h
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
第86届奥斯卡颁奖现场直击，露皮塔·尼永奥凭借《为奴十二年》获得最佳女配角。下面是Lupita Nyong的奥斯卡获奖感言。 And the oscar goes to Lupita Nyong. 下面是Lupita Nyong的获奖感言： Yes! Thank you to the Academy for this incredible recognition. It doesn&
March 15, 2008 THE PRESIDENT: Good morning. On Friday, I traveled to New York City to talk about the state of our economy. This is a topic that has been a source of concern for families across America
