A lot of people want to believe in this concept of moral progress. 许多人想要相信道德进步的这个概念 But can you reconcile that? 但是这有可能达到和谐吗？ I think I understood you to say that you could 我想我了解你所说的 reconcile that wit

Here's how shape works in normal receptors. 这里展示的是形状是如何对通常的感受器起作用的。 You have a molecule coming in, it gets into the protein, which is schematic here, 一个分子进来，进到蛋白质里，图中所示意的就是蛋白质， and it causes this thin

Hi everybody. As I said in my State of the Union address, we live in a time of extraordinary change-change that's affecting the way we live and the way we work. New technology replaces any job where w

Nature Is Our Mother自然是我们的母亲 By Tan Ying(谭英 湖南大学) 专家点评:文章开头较有新意，全文贯穿环保意识，主题鲜明、有强烈的时代感。 Let me begin my speech with a replay of scenes familiar to most, if not all, of those present here today. 请允许我用一个

Remarks of President Barack Obama Weekly AddressJanuary 2, 2010 It has now been more than a week since the attempted act of terrorism aboard that flight to Detroit on Christmas Day. On Thursday, I rec