April 6, 2007 Dr. Sharon Hays, White House Office of Science and Technology Policy Jim Connaughton, Chairman, White House Council on Environmental Quality DR. HAYS: Welcome, everyone and thanks to all

The children came running in. It was three feet off the ground, and they said, "What is this?" 孩子们跑了进来。电脑离地面有3英尺，他们问：“这是什么？” And I said, "Yeah, it's, I don't know. So..." 我说：“唔，这是……我不知道。” They said, "

If there's a building down the block which is being demolished, are there materials there that the new building being built here can use? 如果不远处有一栋楼正在被拆毁，拆下来的这些材料中有没有一些是这边的新建筑物可以使用的？ Can we use that, t

The eight-hour workday, 40-hour workweek, weekends. Overtime and the minimum wage. Safer workplaces. Health insurance, Social Security, Medicare, and retirement plans. All of those gains were fought f

Martin Luther King I Have a Dream by Martin Luther King, Jr. I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation. F