And typically, we'll be treating at least some cases where we're dealing with ideal gases in which case we can easily get delta u.

那么我们也可以定出功，对吧？,典型地，我们至少会处理,一些理想气体的情况。

麻省理工公开课 - 热力学与动力学课程节选

Archaeologists in the nineteenth and twentieth centuries were stunned to find the ruins and the records of remarkable peoples and cultures--massive, complex empires in some cases, but some of which had completely disappeared from human memory.

十九和二十世纪的考古学家们,震惊地发现了,古代伟大名族和文化的遗迹，有些还是大规模，复杂的帝国遗迹,但也有一些就完全从人类记忆中消失了。

耶鲁公开课 - 旧约导论课程节选

In some cases, the back of the head could be more expressive than the front, in which case this is your opportunity and I wish you luck.

有些时候,后脑勺确实比正脸更有表现力,这才是你们的机会,祝你们好运

耶鲁公开课 - 基础物理课程节选