Everybody's going to put the cup down and assumes it's going to stay there but not fall to the floor.

每个人放下杯子时,都会假设杯子会稳稳地搁在那里,而不是掉在地上。

普林斯顿公开课 - 人性课程节选

The first step to insight is to ask questions like why do things fall down and not up?

起初的洞察力是问问题,为什么物体坠地而不是上升？

耶鲁公开课 - 心理学导论课程节选

And if you go to the website and look down here, 02 Fall Term '02.

如果你上那个网站，看到下面这里，秋季学期。

麻省理工公开课 - 固态化学导论课程节选

If you take enough alcohol, it then goes down to inhibit the excitatory parts of your brain and then you fall on the floor and pass out.

如果你摄入足够的酒精,就会抑制在你大脑中起兴奋作用的脑组织,之后你便醉倒了

耶鲁公开课 - 心理学导论课程节选