I'm a brain scientist, and as a brain scientist, 我是一个脑科学家，而作为一个脑科学家， I'm actually interested in how the brain learns, 我对于大脑是如何学习的很感兴趣。 and I'm especially interested in a possibility of mak

It's shocking to realize that only 28 percent of American adults 你们或许会惊讶于，只有28%的美国成年人 have even a very basic level of science literacy, 具备基本的科学知识， and this was tested by asking simple questions like,

December 5, 2007 THE PRESIDENT: Good morning. I'm pleased to be back in Nebraska. I do want to say a couple words about Iran before I talk about my friend, Mike Johanns. On the way out here I spoke wi

But I want us to reflect a little bit again on negative emissions. 但是我想提醒大家再次对负排放进行反思。 Negative emissions should not be considered a silver bullet, 负排放不应该被当作是万全之策， but they may help us if we continue

2009年11月16日美国总统奥巴马在上海与中国青年对话。以下为奥巴马回答现场和网友提问实录： So -- I just want to make sure this works. This is a tradition, by the way, that is very common in the United States at these town hall meetings. And wh