客户周末打电话给我，报告说：我们的系统在和MasterCard厂商进行换密钥的交易时失败，导致客户的所有MasterCard收单交易被拒绝。客户很生气，让人查的结果居然是很低级的数据库操作错误，真是丢人啊！

humiliate

/ hjuːˈmɪlɪeɪt; hjuˋmɪlɪˏet/ v [Tn] make (sb) feel ashamed or disgraced; lower the dignity or self-respect of 使（某人）感到羞耻或不光彩; 使丧失尊严或自尊: He felt humiliated by her scornful remarks. 他听到她那些嘲讽的话而感到屈辱. * a country humiliated by defeat 因战败而受辱的国家. > humiliating adj: a rather humiliating experience 不怎麽光彩的经历. humiliation / hjuːˏmɪlɪˈeɪʃn; hjuˏmɪlɪˋeʃən/ n [C, U]: suffer public humiliation 当众受辱.