I would like to share with you a new model of higher education,a model that, once expanded,can enhance the collective intelligence of millions of creative and motivated individuals that otherwise woul
In between these low-paying retail jobs, I did what any normal teenager did in the 1990s. 在这些薪水低廉的销售工作中，我做了90年代每一个正常的青少年都会做的事。 I shoplifted. I'm just kidding. I hung out with my friends at the mall. 我
So what I'm showing you here is what a system might look like to do just this. 我现在向你们展示的是一个具备这种功能的系统可能的样子。 This is called an air contactor. 它被称为空气接触器。 You can see it has to be really, really wide in o
Obama's Weekly Address WEEKLY ADDRESS: Commemorating Labor Day 奥巴马每周电视讲话:总统同人民一起庆祝劳动节 Hi, everybody. 大家好。 This Labor Day weekend, as we gather with family and friends, we'll also come together as a na
