To gain a complete mastery of English, one must study very hard.
要想精通英语就必须刻苦努力。
Conditions are changing , and to adapt oneself to the new conditions, one must study.
情况总是在不断变化，要想使自己适应新环境，就得学习。
To understand the most important characteristics of a society, one must study its major cities.
要了解一个社会的最重要特征，人们必须研究它的主要城市。
Marginal analysis is therefore one of the most important principles of economic theory, and one must study a few concepts of economic theory before one can proceed.
因此，边际分析是经济理论中最重要的原则之一，而且这个概念必须和几个概念同时研究才可以进行。
One reason this is hard is that radio telescopes must chop the spectrum into fine portions to study it, like tuning into a signal on a car radio.
研究工作进展困难的一个原因是，正如汽车收音机的调频一般，射电望远镜必须把光谱按照波段分成易于研究的片段。
I must study English and I study it for one aim.
我必须学习英语，我是为一个目标而学习。
For example, when you buy English lessons from Showay English, we will tell you that you must study that one lesson at least 30 days, one full month, for a unit.
例如，你从韶唯英语购买课程，我们会告诉你一节课一个单元的内容你必须学习至少30天以上，整整一个月。
Every one of us must study hard.
我们中每位都必须努力学习。
In order to make my dream come true I must study hard now. I hope my dream can come true one day.
为了使我的梦想成真，我必须从现在开始努力。这样我就能够去一所好的大学学习更多的知识了。我希望有一天能够梦想成真。
Applicants must propose a one-year research and study plan connected to one of the Grand Challenges.
申请人必须提交一份和该重大挑战之一有关的为期一年的研究和学习计划。
Anthropology is the study of whole ways of life, to which one must be completely committed, all the time.
人类学是对人类所有生活方式的研究，需要一个人将全部的精力与时间都投入其中。
In order to make my dream come true I must study hard now. I hope my dream can come true one day.
为了使我的梦想成真，我务必从此时开始努力。这样我就能够去一所好的大学学习更多的知识了。我希望有一天能够梦想成真。
Gordon: Yes, we must take an entrance exam, but it is much easier than the Chinese one. We usually only need to study for a few weeks.
戈登：是的，我们要参加升学考试，但比中国的高考容易多了。一般来说，我们只需要复习几个星期就可以了。
We must adopt a serious attitude towards each specific difficulty, create the necessary conditions, study the methods for coping with them and overcome them one by one and batch by batch.
对于每一个具体的困难，我们都要采取认真对待的态度，创造必要的条件，讲究对付的方法，一个一个地、一批一批地将它们克服下去。
I want to be one of them when I grow up, so I must study hard from now on.
当我长大后我想要成为他们中的一员，所以从现在开始我必须要努力学习。
If one wants to know or study Chinese culture deeply, he or she must spend much time in it, otherwise he or she can only get the tip of an iceberg.
如果一个人想要深入了解或者学习中国文化，他必须花大量的时间在上面，否则只能得到冰山一角。
And the study circle leader must regard himself or herself not only as the leader but also as one of the participants.
学习圈的组长必须审视自身，他们不仅是学习圈的组长也是参与者的一员。
Unified coding of product information is one of key problems that enterprises must study and solve in CIMS implementation process.
对产品信息进行统一编码，是企业实施CIMS过程中需要研究和解决的关键问题之一。
I want to be one of them when I grow up, so I must study hard now.
当我长大后我想要成为他们中的一员，因此我必须要努力学习。
I want to be one of them when I grow up so I must study hard now.
当我长大后我想要成为他们中的一员，因此我必须要努力学习。
On the one hand, we must study hard.
一方面，我们应该努力学习。
If god would give me one more chance, I must study hard to be a Dr.
如果上天给我再一次的机会，我一定好好学习，考博士。
Of course, parents can take heart from the fact that while the study does suggest some benefit in action video games, it does not imply that one must do nothing else.
当然，家长们可以放心的是，虽然这项研究确实表明动作类游戏是有益的，但这并不说明我们对沉溺视频游戏可以听之任之。
One must acquire a global historical outlook to absorb modern theoretical results and approach and combine history study with the progress of modern science.
汲取现代理论成果和研究方法，使历史研究与现代科学的进步结合起来。
Chirality is one of the most important factors which must be considered in the study of the structure-activity relationship of radiopharmaceuticals.
手性是研究受体放射性药物构效关系时必须考虑的因素之一。
They must promote further cohesion among workers in literature and art, mutual study and learning and mutual encouragement, encourage mutual aid, and oppose when artists put one another down.
要促进文艺工作者进一步加强团结，相互学习，相互激励，提倡文人互勉，反对文人相轻。
They must promote further cohesion among workers in literature and art, mutual study and learning and mutual encouragement, encourage mutual aid, and oppose when artists put one another down.
要促进文艺工作者进一步加强团结，相互学习，相互激励，提倡文人互勉，反对文人相轻。
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