A lot of the rigid moral distinctions that the poem has actually been working rather hard to establish are beginning to blur.

很多在诗中严格意义上的道德上的区别已经,变得日趋模糊。

耶鲁公开课 - 弥尔顿课程节选

I'm actually in some ways glad that I do have this sort of structured, rigid class situation

某种程度上我会为自己的严格设置的课程体系感到庆幸，

介绍好朋友 - SpeakingMax英语口语达人

That's because it's here where the rigid polarities between light and dark and good and evil, all of these absolute oppositions, begin to collapse.

这是因为这里就是光与暗,善与恶之间严格的两极分化，及所有绝对的对比开始崩塌的地方。

耶鲁公开课 - 弥尔顿课程节选

Even there, a horse is not really a rigid body, unless it's been dead for a long time.

马甚至都不是真正的刚体,除非是死了很长时间了

耶鲁公开课 - 基础物理课程节选

So really, you can not ever rotate a double bond, it makes your molecule very rigid.

实际上，你不能转动一个双键，它使得你的分子很坚固。

麻省理工公开课 - 化学原理课程节选

Originally, they were very rigid about this.

起初，规定是硬性严格的。

耶鲁公开课 - 金融市场课程节选

Marxist analysis has given us this all too rigid picture of the nobility sort of letting their nails grow long, "They are nobles because they do nothing."

马克思主义分析家给出这样的刻板形象,贵族整日游荡,无所事事,"他们是贵族所以他们什么都不做"

耶鲁公开课 - 欧洲文明课程节选

There are different kinds of cell walls in bacteria but they have a rigid cell wall and our cells don't have a rigid cell wall, we have a fluid lipid like cell wall.

细菌有不同种类的细胞壁,但都很坚固,人类细胞没有坚固的细胞壁,我们有一层类似细胞壁的流动的脂类

耶鲁公开课 - 生物医学工程探索课程节选

There are problem in that a horse must be treated when we study rigid bodies.

当我们学习刚体的时候,把马看做什么就是个问题了

耶鲁公开课 - 基础物理课程节选

That comes later when we study what we call "Rigid bodies".

以后当我们会学到刚体时会讲到

耶鲁公开课 - 基础物理课程节选

Moreover, instead of having a strap he had this thing that--a rigid thing-- that you pull out from this-- you know what I'm talking about?

而且他也没用皮带,而是用的现在大家都知道的把手去拖-,你们知道我说的什么吧？

耶鲁公开课 - 金融市场课程节选