There are five chapters including 1) Introduction of background;
全文分五章：第一章，介绍研究背景；
Then it gives a brief introduction of background information on this aspect.
然后简要的介绍了有关的一些背景资料。
The following two chapters are about the introduction of background and situation of the case.
接下来的两章是对个案背景和个案情况的介绍。
应用推荐