经过多年储蓄，她终于用攒下的钱买到了她一直想要的钢琴。

After years of saving, she finally used ___a ___nest ___egg to buy the piano she always wanted.

作为唯一的继承人，她继承了一笔让她能够周游世界的储备金。

As the sole heir, she inherited ___a ___nest ___egg that allowed her to travel the world.

他们在职业生涯中积累了一笔养老金储备，以确保舒适的退休生活。

They built up ___a ___nest ___egg over their careers to ensure a comfortable retirement.