拜赐之师

Explanation: Ironically, but for the revenge for the failure to send troops. 　　Source: "Zuo wengong years": "Spring and Autumn Period, Qin Jin confusion of the war, Qin MENG, as captured. Released, that Jinjun Yue Meng: 'three years will give thanks to Chun.' After three years, Qin really Bing Fa Jin out of revenge. and lost, Jin ridiculed as the "gift of thanks to teachers."