Title: Zheng he
Description: Ben shu shi yi ben you guan ren ji guan xi xue de tu shu, Qi nei rong bao kuo le ren men yuan yi he ta men shu xi, Xi huan de ren zuo sheng yi;Ren mai gou zhu fang an:xing dong, Bu yao zhi shang tan bing;Ju ti xi jie:jian li ren ji guan xi;Ni de gong ju xiang:jiao wang de ji qiao deng.
Subjects: Ren ji guan xi xue, Tong su du wu