黄昏的书房尚未点灯,他坐在那里,低头读信。金黄的夕照温柔圈出一个读书人的侧影,顶上的头发已然稀薄。抬头见她,他笑得慈祥。你来得正好,这封信写得不错。一边说着,一边拿起桌上的红墨水笔,在信纸上批了个A。她感到疑惑又有无可言喻的解脱,原来只是一项作业!红墨水在纸上渐渐晕开,A字越来越大,越来越大…… Twilight study has not light, he sat there, reading a letter down. Golden sunset gentle circle of a scholar’s silhouette, the top of the hair is already thin. He looked up at her, he smiled kindly. You are right, this letter is well written. While speaking, while picking up the red ink pen on the table, approved a letter A. She was puzzled and indescribable relief, turned out to be just one operation! Red ink gradually dizzy on the paper, A word is bigger and bigger, bigger and bigger ...