Dang dai yu yan xue yan jiu wen ku Dang dai yu yan xue yan jiu wen ku. Wai guo yu yan wen xue yan jiu wen ku Wai guo yu yan wen xue yan jiu wen ku. Dang dai yu yan xue cong shu Li shi yu yan xue yan jiu / Li fa yu yan xue yan jiu / Leng zhan guo ji shi yan jiu wen ku Dang dai yu yan xue cong shu. Zhong yan yuan xue ren wen ku