一旦开始流程后，就不要走回头路。

Once you start, don't look back.

然后我们再走回头路，参观了天鹅海和芳草海。

And then we walked down and visited the swan lake and grass lake.

他耸耸肩带我们走上了回头路，重新走过那漫无边际而景色宜人的田野，山峰和森林。

He shrugs his shoulders and leads me back down the path we had just come — back through the endless yet stunning fields, peaks and trees.

新产品能够在产品线上走完自己的市场周期，但如此天花乱坠的营销方式使得其没有回头路。

New products can take on a life of their own within an organization, becoming so hyped that there's no turning back.