He went there to make a speech at a ceremony establishing a military burial ground.

VOA: special.2009.11.12

Clearly, if I take a chalk like this one here, and I throw it on the ground, and it breaks in little pieces, if I run the movie backwards that doesn't make sense, right?

很清楚，如果我拿一支这样的粉笔，把它扔到地上，它会摔成碎片，如果我们把这个场景倒过来放映,那是没有意义的，对吧？

麻省理工公开课 - 热力学与动力学课程节选

At night, Babe would make noises and hit the ground with his feet.

VOA: special.2009.01.24