Title: Bu tu kou hong de jing ji xue
Description: Ben shu tong guo xu shu jing ji si xiang shi,Zhu ci zhan kai zhu duo jing ji xue yuan li,Bing cai yong hui xie de miao shu he you mo de gu shi,Yi qi du zhe neng gou zai qing song de yue du zhong le jie ji ben de jing ji xue yuan li.
Subjects: Jing ji xue, Tong su du wu