根据法律，父母被赋予监护孩子的权利。

By law, parents are ___vested with the right to guardianship of their children.

在公司工作满三年后，员工将获得既定的退休金权益。

After three years with the company, employees gain ___vested rights to the pension plan.

作为公司股东，他对这项决策有着既得利益。

As a shareholder, he has a ___vested interest in this decision.