背，就是转过身去背诵，不看书。这是背书原意，这是中国传统启蒙教育的法宝。请想像这样一个场景：在一个古色古香的书斋里，坐着一位上了年纪的先生。先生左手执书，右手握着一把戒尺，他的跟前背立着一位学童，看不见他的脸，只看见他的一条又黑又亮的小辫子从脑后垂下来。? Back, is to turn around to recite, do not read. This is the endorsement intent, which is a magic weapon for China’s traditional enlightenment education. Imagine a scene where an old man sat in an antique book. Mr. left hand book, holding a right hand ruler, his back in front of a school boy, can not see his face, only to see his a black and bright pigtail hanging down from behind the head. ?