to close the stable door after the horse has bolted
to close the stable door after the horse has bolted
01
亡羊补牢, 事后补救
to try to prevent something bad from happening after it has already happened
idiom
old use
例子
The city council decided to increase funding for road repairs after a fatal accident had already taken place. It was like shutting the barn door after the horse is stolen.
账号被黑后才改密码,真是亡羊补牢。



























