And to explain why this is so, I have a question. 为了解释为什么会是这样，我先问一个问题。 Suppose that there are two diseases: one of them is rare, the other one is common, but if they are not treated they are equally s

We must do what no generation has had to do before. 我们必须做前人无需做的事情。 We must invest more in our own people, in their jobs, in their future, and at the same time cut our massive debt. 我们必须更多地投资于人民，投资于他们的

Today, there are 1.8 billion young people between the ages of 10 and 24 in the world. 今天，全世界有18亿年龄在10-24岁的年轻人。 It is the largest cohort in human history. 这是人类史上最大的群体。 Meeting their needs will be a big

Chancellor Wrighton, members of the Board of Trustees and the Administration, distinguished faculty, Class of 1965, hard-working staff, my fellow honorees, proud and relieved parents, calm and serene

Hi, everybody. 大家好。 In my State of the Union Address, I talked about the idea of opportunity for all. 在我的国情咨文里，我谈到了为所有人创造机会的理念。 Opportunity is the idea at the heart of this country-that no matter who