close, etc. the barn door after the horse has escaped
释义
● close , etc . the barn door after the horse has eˈscaped (NAmE ) (BrE close , etc . the stable door after the horse has ˈbolted ) to try to prevent or avoid loss or damage when it is already too late to do so 马跑了才去关厩门；贼走关门，为时已晚See also barn