You spend a lot of time talking about the transition between alchemy and modern chemistry.

在高中化学你很多时间是花在,了解从炼金术到化学的改变上。

麻省理工公开课 - 化学原理课程节选

The real sort of typical home of the kinds of things were talking about is Mesopotamia, modern Iraq, the Tigress, Euphrates Valley, which spread out beyond Iraq and went up into Syria and neighboring places.

我们所讨论的这些旧文明中的典型大约,起源于美索不达米亚,即现在的伊拉克,在底格里斯河,幼发拉底河流域,其范围超过了伊拉克,还包括叙利亚以及邻近地区

耶鲁公开课 - 古希腊历史简介课程节选