There is an old English saying, "Necessity is the mother of invention," which means that when you are faced with a need you will discover some way of fulfilling it.
英国有一句古话“需要是发明之母”。这意味着当你面对一种需要时，你将发现一种方法满足它。
Backward compatibility is required in cases where a contract or practical necessity defines the need to support previous versions.
如果合约或实际情况要求支持以前的版本，就必须保持向后兼容性。
It's amazing what our culture has done to us: we have been conditioned to believe that luxuries are a necessity, that we need things that most of the world doesn't even dream of having.
非常令人惊奇的是我们的文化告诉我们：我们一直习惯于认为奢侈品是必须的，然而我们需要的大多数世界上的东西其实并不是我们想要的。看看你的家里现在(或当你回家)。
And there is only one way the language will become a true necessity: you need to start speaking it with other people, now.
有一个方法可以把外语变成真正的必需：假如你现在就要用外语和别人交流。
And there is only one way the language will become a true necessity: you need to start speaking it with other people, now. Stop learning the language, and start speaking it!
有一个方法可以把外语变成真正的必需：假如你现在就要用外语和别人交流。
Republicans need to admit that maintaining adequate public provision as the population ages requires, almost as a matter of arithmetical necessity, more revenues.
共和党需要承认，随着美国人口日益老龄化，维持充足的公共供给需要(这种需要几乎等同算术意义上的必需)更多的税收收入。
So, here again a question of necessity, we really need everyone to become tall and robust as the chimpanzees do?
所以，这里又有一个必要性的问题，我们真的需要人人都变得高大健壮如同黑猩猩吗？
In today's economy, when having both parents in the workforce is an economic necessity for many families, we need affordable, high-quality childcare more than ever.
在今天的经济状况下，对很多家庭而言，父母都有工作在经济上是必需的，我们比以往任何时候都更需要能够负担得起的高质量托儿服务。
Establishing this measure is the need of investigating drugs crimes which is unprecedented in the investigation history of our country. It has its necessity and legality under then background.
这一措施的确立是面对毒品的泛滥和侦查毒品犯罪的需要，在我国侦查史上史无前例，这一侦查措施的出台在当时的背景下，有其必要性和合法性。
The case of Zhengbaiwen company suggests not only the urgent need of a restructure system in our legal practice, but also the necessity of appropriate government involvement in the restructuring.
郑百文公司重组的案例不仅表明我国的司法实践中迫切需要破产重整制度，而且表明应在重整制度中强调国家适当介入的必要性。
The office is an essential necessity - in order to make sure we arrive at the track in good shape with everything we need to perform.
办公室也是必须的-为了确保我们抵达赛道时有好的状态并且具备了我们所需的东西。
This paper introduces the necessity of system construction, navigation conditions and problems need solving in piloting safety control of Yangtze River.
本文介绍了系统建设的必要性、长江通航条件和目前长江引航安全管理工作中需要解决的问题。
The Necessity of Income by Daegan Smith There are many things that make the world go round and one of the essentials people need to pay the bills, shop for stuff and other needs is money.
有很多事情，使世界进入回合和其中的要点人民需要支付帐单，购买的东西和其他需要的是钱。
Housing is the basic necessity of life, the basic human survival need, the right of abode is every citizen's basic right.
居住是人类的基本生存需要，住房是人的基本生活必需品，居住权也因此而成为每个现代公民应享有的基本权利。
Necessity is the starting point of encouragement, which is utilized to meet the particularity of editor's need.
需要是激励过程的起点，利用激励，满足编辑需要的特殊性，对调动编辑工作的积极性、主动性、创造性意义重大。
Regarding generation of position power system, but also has the necessity which the need further consummates.
对于代位权制度，还有需要进一步完善的必要。
Certainly, occasionally silly has the necessity, the life does not need to be intelligent at times.
当然，偶尔傻一下有必要，人生不必时时聪明。
The necessity of options: we already have futures. Why do we need options?
期权必要性：有了期货，期权何用？
This understanding is generally founded on the principle of functional necessity: international organizations need immunity in order to be able to perform their functions.
这种认识通常建立在职能必要性的原则上：国际组织需要豁免权，以便能够顺利履行职责。
Restrictions on the abuse of intellectual property rights in China is not only the reality of its need, but also its theoretical necessity.
我国限制知识产权滥用不仅有其现实必要性，还有其理论必要性。
We also realize the growing need and necessity to industrialize certain sections of the economy.
我们也认识到越来越需要使某些经济部门实行工业化。
The necessity of mitigation of punishment exists in meeting the need of modesty, humanity, effectiveness and efficiency of penalty, and internationalization of criminal law.
刑罚轻缓化的必要性表现在它是刑法谦抑性、刑法人道性、刑罚功能有效性和有限性、刑罚效益性以及刑法国际化的需要。
We also realized the growing need and necessity to industrialize certain sectors of the economy.
我们也认识到越来越需要使某些经济部门工业化。
The area is a growing hub that is in need of additional parking space (a necessity in the city of Los Angeles). The project will provide an additional 800 Spaces below its three story retail space.
该地区将成为一个枢纽，急需额外的停车位(这在洛杉矶来说是必须的)。该项目将提供额外的800个停车位在其三层零售空间下面。
From the viewpoint of the exploration and application of method, the necessity of braking safety detection need to be specified.
从方法探索及应用的角度，明确制动热衰退安全性检测的必要性。
The social and psychological necessity for design is easily justified by the fact that we only need to buy , for example, one set of plastic crockery which would last us a life-time.
社会及心理对于设计的需求是很容易由事实来证明的，事实比如我们只需要买一组能够持续我们一生的有一定造型的陶器。
Unlike the latter, the bank strongly discourages consumption loans, though, depending on the need and necessity, it may lend for such purposes;
与后者不同，银行极其不鼓励消费型贷款，尽管有时候是迫不得已，若真是那样他们也会考虑。
Unlike the latter, the bank strongly discourages consumption loans, though, depending on the need and necessity, it may lend for such purposes;
与后者不同，银行极其不鼓励消费型贷款，尽管有时候是迫不得已，若真是那样他们也会考虑。
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