There's no point where the circulatory system crosses the boundary between being inside you and outside of you, it's totally internal.

循环系统绝不会,跨越人体的内外界限,它完全位于体内

耶鲁公开课 - 生物医学工程探索课程节选

One of the things that I defined inside my class definition here was an internal method.

就是这里的内部方法,这个方法有个名字,这很明显，那么这个方法。

麻省理工公开课 - 计算机科学及编程导论课程节选

And the point that I started with earlier, about the internal aspect of emotions, is it's not just out there, but inside as well.

我之前就提到过,关于情感内在方面的观点,情感不仅是外在的,也是内在的

耶鲁公开课 - 死亡课程节选

We've gotten, over the last two decades in particular, very sophisticated about taking pictures inside the body allowing doctors to look inside the body and predict things about our internal physiology that they couldn't predict just by looking at us or putting their hands on us.

特别是在近二十年当中,我们对体内造影已经十分熟悉,它使医生能够看到身体内部,并预测我们体内的生理变化,而仅仅是通过,视诊或者触诊是不能预测这些变化的

耶鲁公开课 - 生物医学工程探索课程节选