In addition to revelant knowledge from textbooks, I also have searched a great deal of datas on the internet,which have made me gained more revelant datas and have fleshed out my case study.

• 除了在教科书上学的相关内容，我还在网上查阅了大量的资料。通过网上的查询，我也获得了更多的相资料，这也更加的充实了我的案例研究。