vested interest

vested-interest的词性：
n.（名词）

1. Law A right or title, as to present or future possession of an estate, that can be conveyed to another.
【法律】 既得权利：能够送给另一个人的一种权利，如对于目前或将来财产的占有

2. A fixed right granted to an employee under a pension plan.
根据养老金政策给予职工的一种确定的权利

3. A special interest in protecting or promoting that which is to one's own personal advantage.
保障或提高个人好处的一种特殊利益

4. vested interests Those groups that seek to maintain or control an existing system or activity from which they derive private benefit.
vested interests 既得利益者，特权阶层：那些寻求维持或者控制一种能得到私人利益的现存的系统或者活动的群体组织