Now, the amazing thing is, if you go to Mexico you can go to museums that have children's toys from pre-Columbian Mexico with wheels.

现在神奇的事情是，如果你去墨西哥,你可以去博物馆,那里有前哥伦比亚墨西哥时代的,带着轮子的幼儿玩具。

耶鲁公开课 - 金融市场课程节选

And that makes it for me a very exciting time to study this because the problems aren't solved in the way that bridge building is largely a solved problem now.

对于我而言,这是一个非常激动人心的时代,因为一百年前桥梁建设中难以解决的问题,在今天都得到了解决

耶鲁公开课 - 生物医学工程探索课程节选

It's a late Victorian image of an archaic singer rendered in the melodramatic manner of Pre-Raphaelite art and thoroughly removed from the aesthetic values of modernism, such as naturalism, formal clarity, emotional restraint and so on.

这是维多利亚时代晚期古代吟唱诗人的肖像,用戏剧化的前拉斐尔派,风格表现，完全摒弃了,现代主义的审美观，比如自然主义，形式明确，感情自制等等。

耶鲁公开课 - 现代诗歌课程节选

I've given you the periods at the top of the chart: early Bronze Age; middle Bronze Age from about 2100 to 1550; we date the late Bronze age from about 1550 until 1200--the introduction of iron and the beginning of the Iron Age in 1200. Prior to that, the Bronze Age, which is divided into these three periods.

我在这个表格的顶端给你们列了一些时期：,早期青铜时代；中期青铜时代，从约公元前2100年到前1550年；,晚期青铜时代，从公元前1550年到前1200年，即铁器时代前页；,然后公元前1200年开始了铁器时代，在那以前，青铜时代分为那样三个时期。

耶鲁公开课 - 旧约导论课程节选

Now, for a long time in American scholarship and in American classrooms one of the deep mythologies about this whole story of the era of the American Civil War in the Old South is that the Old South's plantation economy was dying out.

在很长的一段时间中,美国学术界和美国课堂,对于这个时代内战前的南方历史,存有一个疑点,就是当时南方的种植园经济正在逐渐衰退

耶鲁公开课 - 美国内战与重建课程节选

So, I said I'd tell you a little bit more about where this Bohr radius came from, and it came from a model of the atom that pre-dated quantum mechanics, and Neils Bohr is who came up with the idea of the Bohr radius, and here is hanging out with Einstein, he had pretty good company that he kept.

我要告诉你们,波尔半径是从哪里来的,它起源于前量子力学时代的，原子模型,尼尔斯，玻尔提出了，波尔半径的概念,这是他和爱因斯坦在一起，他们是好朋友，当我们讨论这个原子模型时你们要记住的是，在1911年。

麻省理工公开课 - 化学原理课程节选