ㄕㄠˋshàoㄓㄨㄤˋzhuàngㄅㄨˋㄋㄨˇㄌㄧˋㄌㄠˇlǎoㄉㄚˋㄊㄨˊㄕㄤshāngㄅㄟbēi

  1. 諺語)​年輕力強奮發向上年紀便後悔莫及樂府詩集·○·相和歌··長歌》:百川何時西歸少壯不努力,老大徒傷悲。」繡球·》:少壯不努力,老大徒傷悲』,就是這些秀才情景。」

if you are lazy in your prime, you'll be sorry in your old age