Word Detail
亡羊补牢
wáng yáng bǔ láo
lit. to mend the pen after sheep are lost (idiom), fig. to act belatedly, better late than never, to lock the stable door after the horse has bolted
HSK 7-9 (v3.0)
Examples
亡羊补牢,为时未晚。
Wángyángbǔláo, wéishíwèiwǎn.
Better late than never.