A concussion happens when the brain is shaken, often in a car crash or a fall or a strike to the head in sports.

VOA: special.2009.10.28

But I choose to walk, and just walking in the seasons whether it's snowing or raining, or gorgeous sunny fall day.

但是我选择走路，什么季节都是如此,无论是雪天，雨天，亦或是秋高气爽。

普林斯顿公开课 - 人性课程节选

Is it part of your nature to be good or bad or is it largely due to the situation that you fall in?

人性究竟是善还是恶,或者说是否应当更多地归因于所处的环境

耶鲁公开课 - 心理学导论课程节选

For the first row nearest the fans, they generally suggested trees that lose their leaves in the fall or trees with waxy leaf surfaces.

VOA: special.2009.09.08

Because very often,with very good intentions, we may fall short of what we are capable of doing, or in some situations,even hurt more than help.

因为很多时候，即使有很好的意愿，我们的能力还是有限，或在某些情况下，我们带来的伤害多于帮助。

哈佛公开课 - 幸福课课程节选

Rains have started to fall and are expected to pick up fully in the next two or three weeks.

VOA: standard.2010.03.23

Maybe someday the British--United Kingdom-- something will happen to it, it will fall apart or change, but that is so distant in the future that we can disregard that, so we'll take that as forever.

或许有人会说英国,大英帝国,总会有突发事件发生,政权会发生改变,但至少现阶段不会改变,我们可以忽视它,因此我们就认为它是永久存在的了

耶鲁公开课 - 金融市场课程节选

"Three or four hours before I could fall asleep. I wake up three o'clock in the morning with the same stuff on my mind, tossing and turning.

VOA: standard.2010.05.04

And this is why the humor-- why the damage is often a certain sort of damage involving things like embarrassment, sex, scatology, a banana peel, pie in the face, your pants fall down or something, where there's no real harm.

这就是为什么幽默-,所涉及的伤害通常都是,涉及尴尬，性，不雅语言，香蕉皮，摔到脸上的派，掉裤子之类的，这些情况没有造成真正伤害。

耶鲁公开课 - 心理学导论课程节选

All three roommates are up for reelection in the fall, but Melissa Bean says even if one or more of them were to lose, that would not affect their friendship.

VOA: standard.2010.08.07

He notes: When we see a stroke aimed and just ready to fall upon the leg or arm of another person, we naturally shrink and draw back our own leg or arm and when it does fall we feel it in some measure and are hurt by it as well as the sufferer.

他说过，当我们看到有人要打,别一个人的腿或手臂，我们会不由自主的畏缩，手脚拢起来,当这一下打下来，某种程度上来说,我们会感受到和被打者一样的疼痛。

耶鲁公开课 - 心理学导论课程节选

If you look at it long enough, it is a word that opens and spreads out, makes a circle of a far horizon, a word on which rain can fall and dimple or sweep across in lashing gusts and leave unperturbed, a word that is calm enough to look at, almost lulling, but also hints at holding unreckonable power."

VOA: standard.2010.08.04