Scientific work is differentiated from art by its necessary connection with the idea of progress.
科学工作不同于艺术在于它与进步的概念有必然联系。
Its necessary to plan for the future.
对未来进行规划是有必要的。
Its necessary that we should have a walk now.
我们有必要出去散散步。
I dont believe its necessary to buy the bigger one.
我认为没有必要买容量大一点的。
Then its necessary to learn about the cultures in other countries.
那么有必要。学习一下其他国家的文化。
So its necessary to evaluate the role of infection in more studies.
这两种观点都有其依据，因此尚需进一步研究评价感染因素的作用。
So its necessary to introduce and generalize the situational teaching.
因此，在哲学教学中，引进和推广情境式教学是十分必要的。
Yes. Then its necessary to learn about the cultures in other countries.
是的。那么有必要。学习一下其他国家的文化。
Thus, its necessary to design a common interworking model related to it.
因此，有必要研究一种通用的互通模型。
The delegation deems it necessary to state its position.
代表团认为有必要说明自己的立场。
Can the startup stretch its existing capital if necessary?
如果需要，公司能延伸其现有资本吗？
Yet that is a necessary but not sufficient condition for its success.
然而，对于它的成功来说，这是一个必要条件，但不是充分条件。
The covert approach allowed the White House to hide its involvement if necessary.
如果必要的话，这个秘密措施可以隐蔽掉白宫的参与。
What policies are necessary to guide the organization to meet its goals.
需要什么策略来指导组织满足其目标。
An arbitration tribunal may collect on its own evidence it considers necessary.
仲裁庭认为有必要收集的证据，可以自行收集。
A Spring 2.0 extension tag can define its own attributes and subelement structure as necessary.
Spring 2.0扩展标签可以在必要时定义它自己的attribute以及子元素结构。
All this is necessary because, despite its name, "spent" nuclear fuel still has something of a kick.
所有这一切都是必须要做的，因为虽然就名义上而言是用过的“乏燃料”，但它们仍具有一定的危险性。
You now know the necessary steps of modeling a web service and its data model.
现在您知道了建模一个Web服务及其数据模型所需要的步骤。
The Chinese side will definitely take necessary measures to safeguard its security interests.
中方将坚决采取必要措施维护自身安全利益。
Oh, its really not necessary. Thank you, again. Bye.
噢，真的不需要。再次谢谢你。再见。
It is necessary to find out its cause.
研究其产生的原因非常必要。
Everything for its success, it is necessary to pay the price: the struggle.
凡事欲其成功，必要付出代价：奋斗。
At present, it is necessary for production to improve its productivity.
改良和提高苜蓿的优良性状实属当前生产的需要。
And the effectiveness of its management is a necessary guarantee for its teaching quality.
加强实践教学的管理，是提高高等工科院校实践教学质量的重要保证。
It is not necessary to experience it with another person; we can know its joy even when we are alone if we get in touch with the source of its power within us.
如果我们和这种存在我们内部能量的源泉相连，我们就不需要和另一个人一起经历它，其实当我们单独一人时，我们的确可以感受到这种愉悦。
It is not necessary to experience it with another person; we can know its joy even when we are alone if we get in touch with the source of its power within us.
如果我们和这种存在我们内部能量的源泉相连，我们就不需要和另一个人一起经历它，其实当我们单独一人时，我们的确可以感受到这种愉悦。
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