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 the responsibility of every government to uphold certain basic principles.
每个政府都有责任维护某些基本原则。
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。
The paper says the evidence, when it surfaces, is certain to cause uproar.
该报纸说，该证据一旦出现肯定会引起骚动。
The boy has gaps in his mind about it. He is blotting certain things out.
这个男孩对此事的记忆有缺失，他对有些事情不记得了。
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 important to assess our suitability for a certain career in job search.
在找工作时评估我们是否适合某个职业是很重要的。
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。
It is difficult to train pigeons to escape from a certain situation by pecking.
训练鸽子通过叼啄来脱离某种情境是很困难的。
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。
It is certain that Mr. Black will support your plan.
确定无疑的是，布莱克先生会支持你的计划。
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。
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