Xian dai zhi shi wen ku. Xian dai zhi shi wen ku Wen shi zhi shi wen ku. Zi xue zhi shi wen ku. Xian dai she hui xue wen ku. Mian chao da hai bo shi wen ku. You shi xin zhi shi wen ku. Er shi shi ji wen ku. xian dai zhu yi- shi ren Shao nian er tong zhi shi wen ku.