During a surprise visit to Afghanistan, President Obama speaks to the troops at Bagram Air Base: THE PRESIDENT: Hello, everybody! (Applause.) I’m sorry, Bagram, I can’t hear you. (Applause.) Air Assau
Just to back up a bit, we asked ourselves a question: Can we actually measure the health of a conversation, and what does that mean? 让我们倒回去一点，我们问了自己一个问题：我们是否能测量对话的质量？而对质量的定义又是什么？ And in the same way t
My name is Canwen, and I play both the piano and the violin. I aspire to some day be a doctor,and my favorite subject is calculus. My mom and dad are tiger parents,who won't let me go to sleepov
Throughout American history though, they have lost that bet and I believe they will this time as well. 可是纵观美国历史他们一再下错赌注我相信这一次也不例外 But ultimately Class of 2012, that will depend on you Don't wait f
