Nor is it certain that the scheme provides a more general boost to the economy, as buyers may have been put off other purchases in order to afford a new vehicle.
诸如此类的方案对整个经济是否会有刺激也不得而知，因为消费者也许会为了购买一辆汽车而推迟其他的购物计划。
It is their sensitive response to human circumstance that accounts for the persistence of certain universal ideas.
他们对人类环境的敏感反应解释了某些普遍观点的持久性。
Do you need all of it or is there a certain section or chapter you're working with?
你需要全部的资料吗？还是你正在处理某个章节？
It is necessary initially to classify the headaches into certain types.
起初把头疼分成若干类别是有必要的。
An aeroplane has to reach a certain speed before there is enough lift to get it off the ground.
飞机得在达到一定的速度以后，才能有足够的提升力从地面起飞。
One is time, that I think it takes certain amount of time to shed the thoughts, the anxiety in everything else.
一个是时间，我认为它需要一定的时间来摆脱思想，摆脱其他一切的焦虑。
It is after all a simple ball and socket joint; it has certain loads imposed on it; it needs reliability over a defined life; it must contain materials suitable for the working environment.
它毕竟是一个简单的球窝关节；它有一定的载荷；它在有限的生命中需要可靠性；它必须包含适合工作环境的材料。
I assume another reason you were so certain is that—rather famously—you swallowed a bunch of Helicobacter bacteria to prove that it caused stomach problems.
我猜你能这么肯定的另一个原因是——众所周知——你吞下了一堆幽门螺杆菌以证明是它引起了胃病。
On occasions it is the fear that certain disclosures may be unacceptable to family or friends that motivates an individual to seek professional help.
有时，正是因为担心某些信息披露可能会让家人或朋友无法接受，才促使个人寻求专业帮助。
While it is true that the olfactory powers of humans are nothing like as fine as those possessed by certain animals, they are still remarkably acute.
虽然人类的嗅觉能力确实不如某些动物灵敏，但也是非常敏锐的。
It means we should understand that what Ryan and so many Americans fought and died for is not a place on a map or a certain kind of people.
它意味着我们要认识到瑞恩和许多美国人并不是为了地图上的一个地点或者某一类人而战斗和牺牲的。
It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.
我们永远也不会知道这种计算能力是何时、如何发展起来的，但可以肯定的是，在人类形成半永久定居点的时候，这种计数法已经发展得很好了。
It is also important to note that the study found only a correlation, as researchers did not prove for certain that optimism leads to a longer life.
还值得注意的是，该研究只是发现了一种关联，因为研究人员并不能明确证明乐观与长寿有必然联系。
The thing about the scorpion badge is that it bestowed upon the car a certain specialness; this was no ordinary Fiat, but an Abarth.
这个蝎子车标的意义在于它赋予了这台车的独特之处；这不是一台普通的菲亚特，它是阿巴斯。
"The challenge is if certain types of people are doing something, it's difficult for other people to break into it," said Po-Shen Loh, the head coach of last year's winning U.S. Math Olympiad team.
去年获胜的美国数学奥林匹克代表队的总教练罗博深说：“挑战在于，如果某些类型的人正在做某事，其他人就很难成功打入其中。”
The robot will have to have a certain way to receive the program so that it knows what it is to do.
机器人必须有一种特定的方式来接收程序，这样它才知道自己要做什么。
It is certain that the Census procedures, which lump the online sales of major traditional retailers like Walmart with "non-store retailers".
可以肯定的是，人口普查程序将沃尔玛等主要传统零售商的在线销售与“非商店零售商”混为一谈。
Poverty is not prevalent in most cities although, perhaps because of the crowded conditions in certain areas, it is more visible there.
贫穷在大多数城市并不普遍，但也许由于某些地区的拥挤状况，贫穷在那里更为明显。
One thing, however, is certain: your chances of getting the raise you feel you deserve are less if you don't at least ask for it.
然而，有一件事是肯定的：如果你连要求加薪的要求都没有，那么你认为自己应得的加薪机会就会减少。
Disgust is one of them and it is universally elicited by certain things like this list.
厌恶就是其中之一，它通常是由这类事情引起的。
It just explains that you feel a certain way and it might be contradictory to what is expected of you.
它只是说明你有一种特定的感觉，它可能与你的期望相矛盾。
The third, and most potent limitation is that it is not possible to be certain that the infant's response was due to the stimulus presented or to a change from no stimulus to a stimulus.
第三也是最有力的限制在于婴儿做出的是面对刺激的反应，还是从受到刺激到没受到刺激的变化，这是无法确认的。
It was the heart of a most respectable rich man, whose name is certain to be found in the Directory.
那是一个可敬又富有的绅士的心，他的名字可以在《名人录》里找到。
The word "yellow" in the second line of Tony the Tow Truck, its denotation is that it is a certain color, the color that Tony's garage is painted.
《托尼拖车》第二行中的“黄色”一词，它的意思是它是一种特定的颜色，托尼的车库被漆成的颜色。
Another shortcoming is that it is not applicable to certain very muscular people such as athletes and bodybuilders, who can also have artificially high BMIs.
另一个缺点是它不适用于一些像运动员和健美运动员这样的肌肉发达的人，他们也可以有人为造成的身体质量指数偏高的情况。
The same is not certain when it comes to students from more disadvantaged backgrounds.
对于家庭背景更贫困的学生来说，情况就不一定了。
It is certain that you will think the red one is heavier.
当然你会认为红色的更重。
It is certain that people's views on happiness are affected greatly by their own life experience.
毋庸置疑，人们对于幸福的看法很大程度上受他们的生活经验所影响。
With the current footprint of humanity, "it seems that global collapse is certain to happen in some form, possibly within a decade, certainly within this century," Johnson said in an email.
约翰逊在一封电子邮件中说，以目前人类的足迹来看，“似乎全球崩溃肯定会以某种形式发生，可能在未来10年内，但肯定在本世纪内。”
It then sends a picture to a certain center which can decide who the person is.
然后它将图片发送到某个中心。该中心可以判定这个人是谁。
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