耿耿于怀

Explanation: Can not forget, led by Ying at heart. 　　Usage: Partial official; as predicate, attributive; things that can not forget 　　Source: Song Wen Tianxiang "He predecessors is": "He stars around the heart, the virtual point in Zhen, Sincere public life, snow, stand outside the door to heart." 　　Examples: Should be solidarity between the students, must not be due to a little small ~. Thesaurus:  be immersed in love, Lick calf Wife, Dreaming, Geduqianchang, be deeply concerned, Dedicated to heart, Lou Bone bear in mind, Lou Heart ingrained, Haruki Muyun, Lick calf love, Hunqianmengrao, to remember always Antonym Group:  settle sth. by leaving it unsettled, Think nothing of it., discount cause (sb/sth) to be in a certain condition, defect make little of, defect care, cast one's cap at, blind to, Shushiwudu, leave out of account, pass without remark, ignore