The streets were all completely blocked off by the San Francisco Police and the U.S. Secret Service was there and Russian Security Forces were there 整条街都被旧金山警方封锁起来 满处都是美国特勤局和俄罗斯安全部队的人 And so was this

So today I want to show you my interactive software model that I created. 所以今天我想向你们展示我创造的互动软件。 I'm going to show it to you on my laptop. And I have a volunteer subject in the audience today, Julie. 我将

Kelly McGonigal: How to make stress your friend 如何让压力成为朋友 I have a confession to make, but first, I want you to make a little confession to me. In the past year, I want you to just raise your hand 我要坦

Law enforcement is currently a closed system. It's nation-based, while the threat is international. 执法活动在当下仍属一个封闭的系统。它虽以国家为基础，但威胁是国际性的。 Policing doesn't scale globally. At least, it hasn't, and our cu

关于希望之星英语演讲稿1 　　Ladies and Gentlemen: 　　“If I could reach higher, just for one moment to touch the sky…”---this is from my favorite song Reach. 　　When we are appreciating the passionate melody of Glori