一失足成千古恨的英语：a single slip can cause a lasting sorrow.; a false step may cause a lifelong regret.; a mere slip of the foot can mean death.; a moment's error will bring about [cause] sorrow for a thousand years.; a moment's mistake will bring about sorrow for ages.; a slip of the foot would finish all!; a trip at one point may make one woeful for life.; a wrong step results in eternal regret.; one false step brings everlasting grief.; the error of a moment becomes the regret of a lifetime.: 一失足成千古恨, 再回头已过百年身。 one single slip brings eternal regret, and looking back, your whole life has passed away
