Translation of "nebulous" into Chinese

Others seem to prefer ad hoc spontaneous and nebulous solutions.

也有些国家似乎更喜欢自发和模糊的专门解决方案。

This presents us with a nebulous legal concept, the scope of which must be determined through an analysis of practice and, in particular, State practice.

由此,我们面对的是一个含糊的法律概念,其范围必须通过对实践的分析、特别是对国家实践的分析来确定。