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Hi everybody. 嗨,大家好。 A few days ago, I unveiled a new national plan to confront the growing threat of a changing climate. 就在前几天,我推出了一项新的国家计划以应对日益增长的气候变化威胁。 Decades of carefully reviewed science tells
'卷福'读信索尔·勒维特写给伊娃·海瑟的回信
Dear Eva, It will be almost a month since you wrote to me and you have possibly forgotten your state of mind (I doubt it though) . 亲爱的伊娃,距你给我写的上封信快有一个月了,你可能已经忘记了你当时的心态(虽然我不这么觉得)。 You seem the same as
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TED演讲:我们如何研究生活在肠道中的微生物(4)
Now, we did study some other species of primate. 我们也研究过其他种类的灵长类动物。 What species of primate do you think is even more divergent from the wild primates than the captive primates? 你觉得哪种灵长类动物比圈养的灵长类更加与野生灵
奥巴马每周电视讲话:总统呼吁继承9.11曾经失去的财富(2)
At the same time, the terrorist threat has evolved, as we've seen so tragically from Boston to Chattanooga, from San Bernardino to Orlando. 同时,恐怖威胁的方式也在变化,我们见证了从波士顿到查塔努加,从圣贝纳迪诺到奥兰多这些悲剧。 So in Afgh