表达 “close the stable door after the horse has bolted” 直译是 “当马逃脱后才关马厩的门栏”，比喻 “在不好的事情发生之后，才采取行动，为时已晚” 。也有人会说 “shut the barn door after the horse has bolted”，意思相同。

• Fixing the washing machine after it’s leaked everywhere is like closing the stable door after the horse has bolted!
  在水漏得到处都是之后才去修洗衣机，行动得太晚了！
• There is no point trying to fix the car now. You’re just closing the stable door after the horse has bolted.
  车子到这个地步已经没法修了，为时已晚。
• You’ve shut the barn door after the horse has bolted – the damage is done, so repairing it now won’t make any difference!
  你想补救已经太迟了，造成的损害已是既成的事实，现在再怎么做也是于事无补！