Dang dai tai wan wen xue yan jiu = Dang dai tai wan wen xue yan jiu/ Gu dai xi qu- wen xue yan jiu Gu dian wen xue yan jiu gu dian wen xue yan jiu Gu dai wai xiao ci qi yan jiu = Xian dai han yu yu fa yan jiu = Zhong guo hai dao qian yan wen ti yan jiu = Wai guo yu yan wen xue yan jiu wen ku Xian dai xing lun li xu shi yan jiu =