这一点可能更难实现，但要达到效果需要很长一段时间。

This one may be a bit more difficult to pull off, but it can go a long way to achieving results.

youdao

在14世纪和15世纪，许多位于现在美国西南部的西部普韦布洛定居点可能拥有明显的等级组织结构。

In the fourteenth and fifteenth centuries, many Western Pueblo settlements in what is now the southwestern United States may have possessed distinctly hierarchical organizational structures.

youdao

我是说，水培法并不是我的专长，但是从我读到的研究来看，我们在讲是19世纪，如果你真的延伸一点可能就是17世纪。

I mean, hydroponics isn't really my specialty but from the research I have read, we are talking the nineteenth century, maybe the seventeenth century if you really stretch it.

youdao

And maybe at 4 p.m., I watch the news and I'll have this little chat with my family about Sharon and elections.

可能在4点时，我会看新闻,与我的家人交谈,谈论沙龙以及选举。

普林斯顿公开课 - 人性课程节选

You could also pick a point down here, which is more than 100% bonds-- how would you do that?

你也可能选择一个下面的点，表示超过100%，的债券-,这是如何做到的呢？

耶鲁公开课 - 金融市场课程节选

So with apologies for being a bit more boring for twenty minutes, let's do something we'll call formal stuff.

抱歉接下来的二十多钟分可能有点枯燥,我们来做点正经事

耶鲁公开课 - 博弈论课程节选