Exactly 30 minutes into the problem-solving the researchers interrupted each group 在他们开始解决问题30分钟时 研究人员们会打断各组 They entered the room bearing a plate of cookies. Four cookies 他们会拿着一盘饼干进入房间 The team consi
Some in my country fear that China's research and development will overtake America's, but I believe that America and the world will benefit from China's scientific and technological advan
"Kid President小孩总统"充满激情的励志演讲，他是来自美国田纳西州的小男孩Robby Novak，今年9岁。这位看起来充满活力、上串下跳的小男孩，患有成骨不全症，又称"脆骨症"。Robby想通过他的演讲，让大人们少点烦恼，世界自然美好。这篇名为"A Pep Talk from Kid President to You"的演讲，
Franklin Delano Roosevelt: Pearl Harbor Address to the Nation (December 8 ,1941) Mr. Vice President, Mr. Speaker, Members of the Senate, and of the House of Representatives: Yesterday, December 7th, 1
