[书] （书箱） a box for books;book box;satchel: 负 ～ 从师 shoulder one's satchel and go to one's teacher;leave home to study under a master； 负 ～ 求师 carry one's suitcase and go abroad as a student to seek a teacher;seek (out) teachers with book basket on one's back； 负 ～ 游学 pursue one's studies away from home