一失足成千古恨

一失足成千古恨:

Literally means:

the error of a moment becomes the remorse of a lifetime

Actually means:

失足, a slip, figuratively refers to degeneration or committing serious mistake. Qiangu, a long time, here refers to eternity.

This phrase means that once a man turns bad or has a slip by committing a grave error, it will become the remorse of his lifetime; one false step brings about eternal regret; a single slip can cause a lifelong regret.

It is used to admonish people to think twice to avoid making wrong decision. Sometimes used as exclamation.

失足，走路不小心跌倒，比喻堕落或犯大错误。千古，久远的时间，这里指永远。

一旦堕落或有时候不小心犯了严重的错误，就会留下一辈子的悔恨。

用来劝人做事情前多考虑，不要做出错误的决定。有时用来表示感叹。