I call this the staircase illusion, and actually when the staircase illusion abruptly ended, he froze, and this is called freezing of gait.
我把这种称为阶梯假象，实际上，当阶梯假象突然结束了，他就会停住了，这叫做步态冻结。
Actually when I was teaching here, there was a Princeton-Penn basketball game.
实际上，我在这里教学时，曾经有一场普林斯顿和宾夕法尼亚大学篮球赛。
But then it was discovered that actually when you look at motion at really small levels - beyond the level of the atoms - Newton's laws no longer apply.
但是当你观察比原子更小层面的微观世界，你会发现牛顿定律不再适用了。
Terry actually says "Oh, shucks!" when complimented on her singing.
当人们赞美特里的歌声时，她实际上会说“噢，这没什么!”
I mean, just think how little noise from the outside world actually reaches you when your head is underwater.
我的意思是，只需想想当你的头在水下时，你实际能听见多小的外界噪音。
While it may seem as if kids are just exercising their bodies when they're running around, they may actually be exercising their brains as well.
虽然孩子们在四处奔跑时似乎只是在锻炼他们的身体，但实际上他们的大脑可能也得到了锻炼。
So while it may seem as if kids are just exercising their bodies when they're running around, they may actually be exercising their brains as well.
因此，虽然当孩子们在四处奔跑时似乎只是在锻炼他们的身体，但实际上他们可能也在锻炼他们的大脑。
Actually, when I think about the Olympic, I like all the athletics events.
事实上，当我想到奥运会的时候，我喜欢所有的田径项目。
Convincing open-minded dairy people is actually not that hard when you look at the economics.
从经济学的角度来看，说服思想开放的乳品业人士其实没有那么困难。
Convincing open-minded dairy people is actually not that hard, when you look at the economics.
从经济角度来看，要说服思想开放的乳品行业人士其实并不难。
They were so tranquil and clear that Olle thought he saw a bird drowning in one, when it was actually the reflection of a gull gliding above the surface.
它们是那么平静那么清澈，以至于 Olle以为自己看见一只鸟正沉入水中，其实那是一只正在滑翔的海鸥在水中的倒影。
But the costs to the whole society can actually be quantified and, when added up, can amount to staggering sums.
但对整个社会来说，其成本实际上是可以量化的，如果把它们加起来，可能会达到惊人的数额。
When Earth's orbit is more elliptical, Earth is actually closer to the sun during part of the year.
当地球的轨道更接近椭圆时，地球实际上在一年的一部分时间里更接近太阳。
Some scientists say taking medicines when you have a cold is actually bad for you.
一些科学家说，感冒时吃药实际上会对你有害。
Forty four percent of people are actually looking for doctors or other providers when they search for health information online.
44%的人在网上搜索健康信息时实际上是在寻找医生或其他提供者。
Reformers also want to see the INS set up a database to monitor whether visa holders actually leave the country when they are required to.
改革派人士还希望移民归化局建立一个数据库，以在这些签证持有人被要求离开该国的时候，监控他们是否真的离开了。
The solution to this problem is not to try to use money as an incentive to do housework, but to get children involved in housework much earlier, when they actually want to do it.
解决这个问题的办法不是用钱来激励孩子们做家务，而应该在他们真的想做家务的时候，让孩子们尽早参与其中。
I love Robert Frost. Robert Frost actually visited Yale University when he was alive.
我爱罗伯特·弗罗斯特。罗伯特·弗罗斯特事实上生前还到访过耶鲁大学。
When you actually wanna store information on disk, you can actually use magnetic particles.
当你想在磁盘上存储信息时，你可以使用磁粒子。
Jones was shocked when she said that she didn't actually mind being cheated.
当她说自己实际上并不介意被骗时，琼斯很震惊。
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