to close the stable door after the horse (has bolted / is stolen)
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
习语
旧用法
例子
Installing cameras after the robbery was like shutting the barn door after the horse had bolted.
被偷之后才装监控,真是亡羊补牢。



























