亲痛仇快qīn tòng chóu kuài亲人痛心,仇人高兴{sadden one's own people and gladden the enemy; bring grief to one's own people and joy to the enemy}: 决不能做～的事。{We must not do anything to sadden our friends and delight our enemies.}也说also亲者痛,仇者快{qīnzhětòng, chóuzhěkuài}。