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.

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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.

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Recognizing fine patterns, and you have in fact a very specialization of your brain in the centre called the fovea.

识别精细图案，实际上你的大脑中心,有一个叫做中央凸的部具有特殊的作用。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选