预售商品房抵押是一个复杂的法律问题，其中涉及到很多法律关系。
The mortgage of presale merchandise buildings is a very complicated problem, involving many law relations.
如您所知，许可证是一个很复杂的法律问题，而且经常没有实际的物理介质交付。
As you know, license is a complex legal problem and most time do not have physical products be delivered, so some small resellers cannot get a correct understanding or may give you a wrong solution.
国际环境责任是国际环保领域中的新课题，有许多复杂的法律问题有待研究和解决。
International environmental responsibility is a new topic in the field of international environment protection, in which there are a lot of complicated legal issues to be researched and addressed.
笔者注重用一般的民法理论分析解决实践中错综复杂的法律问题，从而使本文更具有对实践的指导意义。
The writer attaches importance to applying basic theory of civil law to account for some complicate and diverse practical legal issues, which makes this article abound in empirical significance.
但要解释清楚错综复杂的金融和法律问题是件技术活。
But the explication of intricate financial and legal issues is an art form not easily mastered.
即使不考虑法律问题，在Windows电脑上安装苹果操作系统虽然不像脑外科手术那么复杂，但需要的技巧也比普通用户所掌握的更多。
Even if you are willing to ignore the legal issues, this process, while not brain surgery, takes more skill than the average user possesses.
电子订约错误便是诸多复杂法律问题的一种。
Error in electronic contracting is one of the complicated social works and law problems.
无权处分合同效力的认定，是一个需要众多民事法律制度配合，进行体系化调整的复杂法律问题。
The efficiency of non-right disposition contract is a complicated problem, which requires many civil legal systems to modulate.
国际海洋划界的地理环境复杂，涉及学科多，既有法律问题也有技术方法问题。
Due to complex geographic environments, international maritime boundary delimitation has to involve many problems, including both legal and technical problems.
由于相关法律规定的不明确，学界对其中涉及的法律问题存在许多争议，加之司法实践中认定意见的不一致，使这类案件显得异常复杂。
Because the relevant law is not clear and perfect, but up to now, there are many legal issues involved in the criminal theory and in the judicial practice, so that such cases appear very complex.
由于相关法律规定的不明确，学界对其中涉及的法律问题存在许多争议，加之司法实践中认定意见的不一致，使这类案件显得异常复杂。
Because the relevant law is not clear and perfect, but up to now, there are many legal issues involved in the criminal theory and in the judicial practice, so that such cases appear very complex.
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