At present, the cause of this disease has not been fully elaborated yet, and the treatment of AD is also a thorny problem.

Parallel import of copyright goods is a thorny problem for it involves the trade of copyright.

版权商品的平行进口是一个比较棘手的问题，它涉及到版权贸易的问题。

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For a long time, the pulp density detection has been a very thorny problem.

长期以来对矿浆浓度检测都是一个很棘手的问题。

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In most of the developed world, immigration is a thorny problem; it must be curbed and controlled.

时过境迁，在大多数发达国家，移民已成为一个棘手的问题：对它必须加以限制和控制。

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The Civilized Thorny Problem Of Jiangsu Road? And Study On Advanced Ethical Theories

江苏道路的文明难题与伦理学前沿理论研究

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L1 Negative transfer has been a thorny problem for Chinese students to improve their English writings.

长期以来，母语负迁移一直是中国学生提高英语写作水平的主要障碍之一。

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Caution of Resource Curse and Solution of Thorny Problem of Development of Resources in Western China

资源诅咒的警示与西部资源开发难题的破解

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Echo printing is one of the oldest ways to debug a thorny problem.

回显打印是调试困难问题的最古老的方法之一。

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Their thorny problem is rising inflation, which hit 5.1 per cent last month.

他们面临的棘手问题是不断上升的通胀上月达到了5.1%。

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For younger patients with the treatment of scoliosis has been a thorny problem.

对年龄较小的脊柱侧凸患者的治疗一直是一个棘手的难题。

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In Japan, though, this is proving a particularly thorny problem.

然而在日本，事实证明这是一个尤其棘手的问题。

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One of the main factors that may influence the comfort inside the passenger car is the noise, which is also a thorny problem.

旅客列车车内振动和噪声是影响乘坐舒适性的主要因素之一，也是较难解决的问题。

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Race relations in the US continue to be a thorny problem. Racism remains a touchy issue.

美国的种族关系一直是棘手的问题。种族主义可是个要小心处理的问题。

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Objective: The treatment and rehabilitation medicine of the damaged peripheral nerve has been a thorny problem for long.

目的：周围神经损伤后的治疗和康复，长期以来都是医学界一个棘手的难题。

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The future of Taiwan and the smaller offshore islands remains a thorny problem, and only half submerged.

台湾以及一些近海岛屿的前途仍然是棘手的问题，若明若暗。

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Along with the gradual approach of the digital age, it has become a thorny problem to break the traditional advertising operation mode.

伴随着数字时代的逐渐走近，突破传统广告的运营模式便已经成为一个棘手的问题。

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When faced with a thorny problem, you especially have to cooperate with each other to seek a resolution.

遇到棘手问题的时候，更要彼此合作，寻求解决之道。

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How to deal with the relationship between freedom of divorce and opposition to wanton divorce is a thorny problem.

如何处理离婚自由与轻率离婚之间的关系是个难题。

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The effect of atmospheric refraction error on observed value is a very thorny problem in EDM trigonometric leveling.

在光电测距三角高程测量中，大气折光对观测量的影响是一个非常棘手的问题。

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Moral education is a thorny problem that receives much concern.

道德教育是一个备受关注而又十分棘手的问题。

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It is an thorny problem how to choose proper words as the subject of a sentence in Chinese-English translation.

在汉英翻译过程中，怎样选择适当的词语作句子的主语往往是一个棘手的问题。

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