TED神童:邹奇奇:大人能从小孩身上学到什么
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奥巴马演讲 继续减免工资税来确保经济持续增长
This week, we learned that our economy added another 140,000 private sector jobs in November. Despite some strong headwinds(逆风) this year, America’s economy has now created private sector jobs f
TED演讲:给阿富汗人带来心灵宁静(5)
So, I was able to launch a three-year project with Caritas Germany, 所以我得以与慈善德国携手启动了为期三年的项目, and we trained 30 Afghan women and men, and we opened 15 counseling centers in Kabul. 我们训练了30个阿富汗人,在喀布尔开设了15
TED演讲:为什么头盔不能预防脑震荡?(6)
Now, this device is only limited in such that it can measure the skull motion, 当下,这个设备仅能测量出颅骨的运动, but what we really want to know is what's happening inside of the brain. 但我们真正想知道的是脑部内部的情形。 So we coll
奥巴马每周电视讲话:总统庆祝美国非裔博物馆开幕(1)
Hi everybody. This weekend, we'll dedicate the newest American icon on our National Mall - the National Museum of African American History and Culture. 嗨,大家好。本周末,我们将在国家广场把时间留给美国标杆建筑--非洲裔美国人历史和文化国家