Parents often wonder what effect thumb sucking or sucking on a pacifier might have on their baby's teeth.

VOA: special.2009.03.11

Haze opened the door and released the thumb and then slammed the door again."A howl arose that would rend almost any heart."

海斯把门打开，让他把拇指抽回去，之后又,砰地把门关上了，撕心裂肺的嚎叫声“

耶鲁公开课 - 1945年后的美国小说课程节选

People differ to the extent it will hurt them to watch me slam my thumb with a hammer.

不同的人看到我用锤子打拇指,会感受到不同程度的痛苦。

耶鲁公开课 - 心理学导论课程节选

There was a purple mark on it that looked like four small fingers and a little thumb.

VOA: special.2009.05.30

Now take these two fingers-- the middle finger and the thumb-- and as much as possible, from that 90 degree angle, create a circle.

再让这两个手指-,中指和姆指-,尽可能保持直角时围成一个圆圈。

哈佛公开课 - 幸福课课程节选

You might say that the woman next door has a green thumb if her garden continues to grow long after your plants have died.

VOA: special.2010.05.23

Light travels basically a foot in a nanosecond. Simple rule of thumb.

光行进的速度是每纳秒一英尺,很简单的经验法则了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Someone who has the ability to grow plants well is said to have a green thumb.

VOA: special.2010.05.23

In comes the prehensile thumb, and the next thing you know you get a colossal earthquake, and the possessor of the prehensile thumb disappears from the earth -which is to say, very possibly the human species will never develop.

就像对人类进化至关重要的大拇指，经历了一场大地震后，如果所有有这种拇指的人都消失了,那么人类就很可能永远不能进化。

耶鲁公开课 - 文学理论导论课程节选

Or maybe just a master at thumb wars.

VOA: special.2009.02.25

That's actually a really good rule of thumb.

那实际上是一个好的经验法则。

哈佛公开课 - 计算机科学课程节选

He's the charlatan preacher. We're certainly not meant to identify with him or to sympathize with him, but here you can't help but thinking about someone getting their thumb smashed in a door.

他是虚伪的传教士，我们当然不打算要支持或,同情他，但是读到这儿你禁不住要去,想，某人的大拇指被猛然关上的门夹住的场景。

耶鲁公开课 - 1945年后的美国小说课程节选

If you see somebody bang their thumb with a hammer, you might cringe.

如果你看到有人拿锤子打他的拇指，你可能会畏缩。

耶鲁公开课 - 心理学导论课程节选

They might suck their thumb, seek out a blanket or so on.

吮大拇指，或是去寻找毯子之类的。

耶鲁公开课 - 心理学导论课程节选

So-- if you don't feel comfortable doing it, don't do it-- what I'd like to do now is as following: Take your thumb and your middle finger and create as much as possible a 90 degree angle.

感觉不舒服的，就不要做，希望按下面的指示做：,让你的姆指和中指,尽可能形成一个直角。

哈佛公开课 - 幸福课课程节选

So really, the rule of thumb if you think back to Scratch is -- that any time you write a statement -- -- something that does something in one line of code -- you generally need the semicolon there.

实际上，根据经验，你们回忆一下在Scratch中,任何时候你们写一条语句-,处理一些操作的一行代码-,你们通常需要在那里加个分号。

哈佛公开课 - 计算机科学课程节选