And I had a chance to see this recently. I went over to Parkville Middle School in Maryland, where engineering is now the most popular subject, mainly thanks to some outstanding teachers who have insp
The Gettysburg Address by President Lincoln Fourscore and seven years ago, our fathers brought forth upon this continent a new Nation, conceived in Liberty, and dedicated to theproposition that all me
Beyond these technical solutions, 除了这些技术层面的措施意外， our work at the Georgetown Climate Center with communities 我们位于乔治城气候中心和社区共同工作 encourages them to look at what existing legal and policy tools are avail
Obama's Weekly Address WEEKLY ADDRESS: Making Higher Education More Affordable for the Middle Class 奥巴马每周电视讲话:总统呼吁负担得起的教育法案 Hi, everybody. 大家好。 Over the past month, I've been visiting towns across Ame
