Reading is continually being described in terms of eating and digestion.

阅读一直被描述为吃和消化的形象。

耶鲁公开课 - 弥尔顿课程节选

Depending on what you call external and internal environment, this path that I'm tracing here, deep within your digestive system, is really directly connected to the outside world through both ends.

基于你们所谓的外环境和内环境,我在这里我所指的消化系统内部通路,它的两端确实与外界环境直接相通

耶鲁公开课 - 生物医学工程探索课程节选

It's sort of like the digestive tract story.

这是和消化道故事差不多的故事。

耶鲁公开课 - 死亡课程节选