So it's trigonal because we have these three atoms that are bound to the central atom here, and if you picture it, it's actually shaped like a pyramid.

这里三角形是因为,我们有3个原子核中心原子成键，如果你画它，它就是金字塔形的。

麻省理工公开课 - 化学原理课程节选

Here's a pyramid that was established from the glycemic index, so this would be a little bit different version of the pyramid.

这个金字塔是基于血糖指数建立的,这个版本的食物金字塔有些许不同

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The Roman household was constructed like a pyramid.

罗马家户类似金字塔结构。

耶鲁公开课 - 新约课程节选

They all died. And it was--not everybody, but in France 1,500,000 people died, and that's a huge demographic chunk, it's like a big shark took a big bite out of your basic pyramid of your demographic tree.

都死了,的确是,倒不是所有人,但是在法国有一百五十万人阵亡,这在人口比例中占很大一部分,就好像一个大鲨鱼照着,人口树的基底咬了一大口

耶鲁公开课 - 1871年后的法国课程节选

Imagine this as a pyramid and not a triangle.

想象一下这是个金字塔，不说三角形。

耶鲁公开课 - 新约课程节选

Well, this is the original food guide pyramid, it's supplemented by a more recent version and I'll show you in just a second.

这是一个最初版本的食物金字塔,最近有一个新版本对其进行了补充,我马上会给大家展示

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So lower-class people--now what happens, though, when you have--see your clients, your freedmen, your sons, your daughters, all these are part of this pyramid structure, and they all benefit from a strong paterfamilias, and he benefits by having a strong household and a large household.

所以低社会阶级的人。。。情况是。。。,你的被庇护人，自由人，儿子，女儿，都属于金字塔结构之一，他们都受益于强大的家长，家长也受益于强大家户。

耶鲁公开课 - 新约课程节选

There's an interesting set of politics that were involved in the creation of this pyramid that we'll talk about as well in a subsequent class, but this is the reigning version of the pyramid.

这个金字塔的建立,涉及了一些有趣的政治问题,我们将会在以后的课程中加以讨论,不过这已经是目前最流行的版本了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It's a whole different pyramid.

这是一个完全不同的金字塔

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选