本书的中心部分是对药物使用的一个历史概述。

The central section of the book is a historical overview of drug use.

《柯林斯英汉双解大词典》

它是树木的中心部分。

It is the central part of trees.

youdao

这些因其密度而被著称为 la foret（森林）的梁，组成了横跨大教堂中心部分的十字形屋顶。

These beams, known as la foret (the forest) because of their density, formed the cross-shaped roof that ran the length of the central part of the cathedral.

youdao

In the very red means in that part of the brain is stimulated by the centre of your visual field.

红色部分说明这部分的大脑,收到视野中心的刺激。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

The exception is Plato, where I'll lecture, maybe two lectures, trying to reconstruct Plato's central arguments, at least the arguments relevant to our class.

例外是柏拉图，我将授课的，也许要两节课，我会重新构建柏拉图中心理论，至少这部分理论是和我们的课相关的。

耶鲁公开课 - 死亡课程节选

The whole idea of insurance is that you take from your good years and you move it into your bad years so that you make it through all your years.

保险的中心思想是,牺牲好年景的部分财富为坏年景提供保障,这样你就不再忧虑年景的好坏

耶鲁公开课 - 金融市场课程节选