laoshi- wo zhidao le. laopshi-kk wo cuo le- laoshi jintian kaixin le. yuanyin shi wo bu zhi dao le. laoshi- jintian zhen de xinku le. zhoumo yukuai ba.^-^
老师我知道了,是我写错了........老师今天心情很好,但是我不知道原因。老师今天真的辛苦了,周末愉快吧......