And the idea was that gravity did work on the water and falling, and that work led to the generation of heat.

焦耳的想法是,重力对水，做了功。

麻省理工公开课 - 热力学与动力学课程节选

so I actually was like almost falling asleep in the second half, so you know.

我后半程几乎都快睡着了。

来伦敦旅游的 - SpeakingMax英语口语达人

And if I think back to my own childhood again, not that that was the glory days by any means, but I mean people weren't falling over hour after hour from dehydration because they didn't have a water bottle with them.

如果我回忆一下自己的童年,不是说我的童年有多光辉灿烂,而是我想说当时人们也没有因脱水而倒下,而因为他们没有随身携带水壶

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So，the point is,every object falling under gravity is given by the same formula, but there are many, many objects that can have many histories, all falling under gravity, and what's different from one object and the other object is, when was it dropped, from what height, and with what initial speed.

关键是,每一个受重力作用下落的物体,都有同样的表达式,但是各个受重力作用下落的物体,都有不同的初始条件,所以它们的区别在于,下落时刻,下落高度和初始速度

耶鲁公开课 - 基础物理课程节选