stumper

1. This kind of classification that comes from the system of civil law has no actual senses to us. Our criminal code stipulation concerning fault can resolve the discernment stumper problem.
   来自大陆法系的这种分类，对于我们没有实际意义，我国刑法关于罪过的规定就能解决认识错误问题。
2. The temporal problem in Geographical Information System ( GIS) is a very important stumper to be solved. The Main difficulty in the problem is to construct a Spatio-Temporal Data Model ( STDM).
   时态GIS研究很重要，但也是一个尚未解决的难点问题，其中的核心是时空数据模型的研究。

noun

1. a particularly difficult or baffling question or problem

   Synonym:    posertoughiesticker