That investment in children feeds through into infrastructure. 对孩子进行投资延伸到了基础设施领域。 So many people have talked about the importance of infrastructure. 很多人都谈到了基础设施的重要性。 The massive growth of high speed r
Existential risk -- the second big problem. 存在风险——第二个重大问题。 Existential risk is a threat to human survival, or to the long-term potential of our species. 存在风险是对人类生存，或对整个人类种群的长远潜能的一种威胁。 Now, why do I sa
I live in Washington, D.C.,but I grew up in Sindhekela, a village in Orissa, in India. 我住在华盛顿特区但我是在新河克拉，印度奥里萨邦的一个小村庄长大。 My father was a government worker. 我父亲是个政府雇员， My mother could not read or write,
Hi, everybody. This week, I'm speaking to you from our Nuclear Security Summit. I welcomed more than 50 leaders from around the world to make sure we're working together to meet one of the gre
