他亲历了儿童时代的河流一步步被污染，鱼类一点点的消失。

He has seen the pristine river of his childhood become polluted and fish populations disappear.

youdao

的确，曾经如同河流般消失了的时光，永远不复回归。

Indeed, as the rushing river, time will never return once it's gone.

youdao

的确，曾经如同河流般消失了的时光，永远不复回归。

Indeed, as the rushing river, time will never return once it's gone.

youdao