"grudges" in Chinese (Simplified)
积怨怨恨
Definition
因别人过去做了某些不好的事情而心存强烈愤怒或不满，这种情绪常常持续很久。
Usage Notes (Chinese (Simplified))
常用搭配是“hold grudges”（怀恨在心），不用于小问题或暂时的不快，通常指长时间的个人恶感。复数形式用于多个对象或长期多次的不满。
Examples
He never holds grudges against his friends.
他从不对朋友怀有**积怨**。
It's unhealthy to keep grudges for years.
长时间记恨是对健康不利的。
Some families have old grudges that never disappear.
有些家庭有永远不会消失的**积怨**。
I try not to let little things turn into big grudges.
我尽量不让小事变成大**积怨**。
People sometimes hold grudges over the silliest things.
人们有时会因为一些很小的事而心存**怨恨**。
If you keep carrying those grudges, it’ll only hurt you.
如果你一直怀着那些**积怨**，只会伤害你自己。