sān yú
意思解释：（More than 3）《三国志·魏志·王肃传》“明帝时大司农弘农、董遇等，亦历注经传，颇传于世”裴松之注引三国魏鱼豢《魏略》：“遇言：'﹝读书﹞当以三余。'或问三余之意。遇言'冬者岁之余，夜者日之余，阴雨者时之余也'。”后以“三余”泛指空闲时间。 指余干、余姚、余杭三县。
三段闲余时间。用以勉励人珍惜光阴，勤奋学习。三国魏明帝时，大司农董遇博学多才。他曾给《老子》作过注，对《左传》也有独到的见解。许多人拜他为师，他总是先让学生们读书百遍。有的学生抱怨说:“哪有那么多时间读书啊?”…
3 Duan Xianyu time. Person of encourage of in order to cherishs time, learn conscientiously. When emperor of Wei Ming of the Three Kingdoms, greatly department farming Dong Yubo learns much ability. He ever gave father had made note, right Zun Chuan also have original opinion. A lot of people do obeisance to him to be division, he always lets students read 100 times first. Do some students complain say: Bay flinch the heart knocks Suo of cook a meal to go straight towards of Wei Lao Ju ...
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