Either put it to the test yourself, or help out someone who is trying to travel hopefully with his thumb outstretched.
你可以自己试一试，也可以帮助那些请求搭便车、满怀希望地去旅行的人。
He had his thumb out and held a gas can in his other hand.
他竖起拇指请求搭车，另一只手里握着一个汽油罐。
There was not a car in sight heading my way, but I started walking and stuck my thumb out.
在我前方的路上看不见有车，但我开始走并且竖起了我的拇指。
Yes, I stood on the side of the freeway and stuck my thumb out, and a passing truck stopped and took me to the airport.
是啊，我站在路边伸出拇指，结果有一辆经过的卡车停下来载我去机场。
A sedan goes by, driver and passenger staring at the mad, well-dressed foreigner walking backward and holding his thumb out in the downpour.
一辆轿车驶过，司机和乘客都盯着我这个疯了似的、穿戴整齐的外国人在暴雨中倒着行走，还向我伸出大拇指。
They might suck their thumb, seek out a blanket or so on.
他们可能吮吸他们的大拇指，寻找毯子或者其他之类的。
Tom Thumb, seeing his father, cried out, "See, father, here I am with the cart, all right and safe!"
大拇指汤姆看见了父亲，立即喊道：“爸爸，你看，我和马车一起来了，平安无事！”
Practice with how much pressure needs to be put on the razor or if the thumb should hold hair against the razor's edge are each part of experimenting with this type of thinning out of hair.
这种方法需要反复练习，来摸准把头发按向刀刃的大拇指需要用多大力。
If you are going further afield, why not stick out your thumb.
如果你走得很远，为什么不伸出你的拇指。
Try it out next time you need to drive your car. Cover your left nostril with your thumb and breathe only through your right nostril for one minute.
下次开车时你就可以试试，用拇指压住左鼻孔只用右鼻孔呼吸一分钟，这样能够提高你驾驶的警觉性。
The thumb-generation who can tap out atext-message under their desks while taking notes with the other hand — they’rein for it, too.
拇指一代，能一手在他们课桌下敲打出短信，还能用另一只手记笔记，他们确实很牛逼。
Old rules of thumb which said that countries should keep enough reserves to cover only short-term foreign debt now look hopelessly out of date.
过去粗浅的经验——国家应该维持足够的外汇储备来应付仅仅是短期的外债——现在看来绝望又过时。
What is your individual trait that makes you stick out like a sore thumb in these situations?
可是你的哪些个性特征让你在这些场合里成了出头鸟？
Say when you're at the front of C prime, your thumb points to the right, your index points up because that's where the surface is, and then your middle finger will point out.
你在曲线C的前端，你的拇指指向右边，你给指出来了，因为那就是这个表面所在，然后你的中指就会指出。
Try it out next time you need to drive your car. Cover your left nostril with your thumb and breathe only through your right nostril for one minute. This should keep you more alert when driving.
下次开车时你就可以试试，用拇指压住左鼻孔只用右鼻孔呼吸一分钟，这样能够提高你驾驶的警觉性。
For me, she stuck out like a sore thumb.
对我来说，她钉在那里就像一个剧痛的手指一样难受。
What this rule of thumb tries to accomplish is to give a downstream component the opportunity to time out on a request before a component further up the call stack does.
这条经验规则的目标是为下游组件提供在调用堆栈的上游组件超时之前超时的机会。
To check out a book, students swipe a bar code placed inside the book at a computer station, which then asks for them to press their thumb on a fingerprint scanner.
学生借一本书，必须先由电脑扫描书本内页条形码，然后再由他在指纹扫描仪上按压自己指纹。
It is important to point out that you can use also these rules of thumb to make a bad design look good.
有必要指出这些重要的经验法则也可以被用来美化低劣的设计。
I'm going to go out on a limb here and give some rules of thumb first, then give some examples to try to justify them.
在这里，我先给出一些经验性规则，然后用一些示例证明它们。
I love it here, but dad always used to tell me how happy he was to have gotten away, out from under the thumb of his raising.
我热爱这片土地，但是父亲过去总是告诉我能够离开那里，不再被这片土地养育着，让他欢欣鼓舞。
With those definitions in mind, we can "scope out" some rules of thumb for using the different scopes.
记住了这些定义，我们就可以制定使用不同作用域的一些原则。
Michael sees a foreigner putting out his hand with his thumb raised.
迈克尔看见一名外国人拇指向上伸出手。
Tom Thumb went up the kitchen chimney and looked out at the top—there was no soot.
汤姆大拇上了厨房的烟囱，从顶上看——没有煤烟。
The modern office block sticks out like a sore thumb among the old buildings in the area.
那座现代的办公大楼昂然地竖立在那片旧建筑物中十分扎眼。
This is the best time to go out and spoil yourself as long as you are following the rule of the thumb: Don't spend what you can't afford to lose.
这种时候是出门的最好时机，宠爱一下你自己，只要在自己的能力能承受的范围之内就行。
When I got the sand off my legs, it was in between in my fingers and in my ring. I pushed up with my thumb to get it out and I must've pushed up hard and I lost it.
当我冲洗腿上的沙子，沙子进到我的戒指和手指的缝里，我用拇指把戒指向上推来把沙子弄出去，我肯定用的劲儿太大了，把戒指给丢了。
When I got the sand off my legs, it was in between in my fingers and in my ring. I pushed up with my thumb to get it out and I must've pushed up hard and I lost it.
当我冲洗腿上的沙子，沙子进到我的戒指和手指的缝里，我用拇指把戒指向上推来把沙子弄出去，我肯定用的劲儿太大了，把戒指给丢了。
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