lifelong

Becoming an astronaut has been a lifelong dream for the young scientist.

(Chinese) 成为一名宇航员一直是这位年轻科学家的毕生梦想。

They have maintained a lifelong friendship since they first met in kindergarten.

(Chinese) 自从在幼儿园第一次见面以来，他们一直保持着终身的友谊。