THE PRESIDENT: Good morning, everybody. Right now, across this country, many Americans are sitting at the kitchen table, they’re scanning the classifieds（分类广告） , they’re updating their res

“一带一路”建立海上合作设想。（中英双语） 2013年，中国国家主席习近平先后提出共建“丝绸之路经济带”和“21世纪海上丝绸之路”的重大倡议。2015年，中国政府发布《推动共建丝绸之路经济带和21世纪海上丝绸之路的愿景与行动》，提出以政策沟通、设施联通、贸易畅通、资金融通、民心相通为主要内容，坚持共商、共建、共享原则，积极推动“一带一路”建设，得到国际社会的广泛关注和积极回应。 In 2013,

Thank you. 谢谢大家。 I have only got 18 minutes to explain something that lasts for hours and days,so I'd better get started. 我只有18分钟的时间来讲一件持续了数天数夜的事情，所以最好述不宜迟， Let's start with a clip from Al Jaz

PRESIDENT OBAMA: Good morning, everybody. Selamat pagi（早安） . It is wonderful once again to see my good friend, the President of Indonesia, and members of his delegation. I obviously have enjoyed our i

And lastly, here's Destin, from "Smarter Every Day," 最后是《每天聪明一点点》的德斯丁， talking about the conservation of angular momentum, and, since it's YouTube, cats: 为我们讲述动量守恒，由于是在YouTube上，所以他用猫来举例： Hey, it's me,