Finally, the some problem meet in study process are given.

　　最后指出了在研究過程中遇到的一些問題。

　　She was never happy unless he was worrying at some problem.

　　只要設(shè)法將把問題解決了她才會高興起來的。

　　In one of my projects, Drools 5 was chosen as a solution for some problem.

　　我有一個項目選擇Drools5來作為解決某個問題的方案。