Hi, everyone. I'm Sirena. I'm 11 years old and from Connecticut. Well, I'm not really sure why I'm here. 大家好，我叫黄凱珉。我今年十一岁，来自康涅狄格州。嗯，我确实不知道我为什么会在这里。 I mean, what does this have to do with technology, e
Weekly Address The White House May 25, 2013 Giving Thanks to our Fallen Heroes this Memorial Day 奥巴马阵亡将士纪念日：感谢那些逝去的英雄 英语演讲稿带中文翻译 Hi, everybody. This week, I've been speaking about America's national s
He also runs this amazing drone mapping program, 他同时管理着无人机测绘地图工程， some of the images of which you can see behind me here and here. 你们能看到我身后的一些图片，这儿，还有这儿。 And this data will be incorporated into the pl
