If an attempt is made to put more men in Fort Sumter, a war cry will be sounded from every hilltop and valley in the South."

VOA: special.2009.08.06

we can run the engine backward and build a refrigerator, if you've got your lecture notes from last period your 8-9, well, they're labeled 8-9 lecture notes, I made an attempt to define something which was a little bit misguided.

现在我们可以把热机倒过来,制作一台制冷机，如果你们拿出上节课的笔记,也就是8-9节，好的，他们在8-9节，当时我试着,定义了一些,有些误导你们的物理量。

麻省理工公开课 - 热力学与动力学课程节选

He made an unsuccessful attempt to escape by jumping into the ocean.

VOA: special.2009.05.27

Should an attempt be made to get supplies to Major Anderson?

VOA: special.2009.08.06