TED演讲:为什么头盔不能预防脑震荡?(10)
And I want to bring this back finally to the original question I asked, which is, 最后我想要回到最初我常被问到的那个问题, would I feel comfortable letting my child play football or ride a bicycle? 我会让我的小孩打橄榄球吗?会让它骑自行车吗?
奥巴马总统每周电台演讲:帮助退伍及现役军人在申请高等教育时获得充分信息
On Friday, I traveled to Ft. Stewart in Georgia to meet with soldiers from the Third Infantry Division. These men and women have fought with bravery and honor in some of the most dangerous places on t
Ted英语演讲:布鲁斯·艾尔沃德:去除脊髓灰质炎
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President Bush Receives Update on Hurricane Ike(Sept.14,2008)
THE PRESIDENT: Well, thanks to you members of the administration for coming in this Sunday morning to discuss Hurricane Ike. I was on the phone to -- with Secretary Chertoff before coming into this me
TED演讲之寻找真理:无神论2.0(2)
I'm interested in the kind of constituency that thinks something along these lines: 我对有些情况非常感兴趣,有些人会说: that thinks, "I can't believe in any of this stuff. “我完全不相信这些宗教 I can't believe