哈佛商学院领导力与管理教授埃米·埃德蒙森：如何将一群陌生人变成一个团队？ Amy Edmondson: How to turn a group of strangers into a team 埃米·埃德蒙森：如何将一群陌生人变成一个团队？ It's August 5, 2010. A massive collapse at the San José Copper Mine in Northern
24. Turning Your Eyes to China 24. 把目光投向中国（温家宝在哈佛大学演讲） As we all know, in the history of mankind, there appeared the Mesopotamian civilization in West Asia, the ancient Egyptian civilization along the
研究者卡迈勒.米艾涛向我们展示了如何通过在家居或写字楼的特定地点安放三种常见的室内植物，从而产生卓越的空气净化效果。Kamal Meattle on how to grow fresh air 怎么样生产新鲜空气Some 17 years ago, I became allergic to Delhi's air. My doctors told me that my lung capacity
President Obama: Hi, everybody. I've got a special guest with me this week – Macklemore. For those of you who don't share the same love for hip-hop that I do, he's a Grammy-winning artist,
