投井下石

Explanation: To fall into the trap of seeing people, and did not reach out to save him, but to push him down, and threw stones. By analogy to be framed when people distress. 　　Usage: Complex sentence; as the predicate attribute, clause; containing derogatory 　　Source: Han Yu Tang "thick Ryuko epitaph": "Once a small interest in clinical, hands down traps to save different argument, and anti-squeezing of the Lower Yan and who are all also." 　　Examples: Kayano friends, no political constraints, usually chasing the wine and meat, when things come to ~. (Liang Bin, "broadcast fire Ji", f) Thesaurus:  hit a man who is down, crow, Zhiren a fatal position, attack someone who has already fallen from power, rejoice, glory, hug oneself at, congratulate oneself Antonym Group:  aim at helping those criticized, Danzhougongji, How to foam phase, when the hare dies, the fox is grieved, Knife reincarnation, Hold the execution! (The exclamation was used in old China when a criminal about to be beheaded on the execution ground won a last-minute pardon or when the case was suddenly reversed.), Sword spare sb.'s feelings, show great concern for the dead and ill, cast (in) one's lot with [throw in one's lot with], freemasonry, the virtue in sparing animal life, an errand of `mercy journey to bring help to sb who is in distress, put oneself in another's position, Save trapped adversities, Emergency help injured, learn from past mistakes and avoid future ones, and to cure the sickness to save the patient, Rumohezhe, all beings grieve for the fellow beings, share the same destiny, Xiangxuyimo, xiangxumo, Profound feelings, xiangrumo, Zhifenhuitan, open one's purse count on, show the utmost solicitude, help in one's hour of need, yeoman's service