亡羊补牢

Once upon a time,there was a shepherd who kept several sheep.

One morning,the shepherd discovered that one of his sheep was missing.It turned out that,during the night,a wolf had stolen his sheep through a hole in the sheep pen.

一天早上,他发现少了一只羊.原来羊圈破了个窟窿,夜间狼从窟窿里钻进来把羊叼走了.

邻居劝告他说:“赶快把羊圈修一修,堵上那个窟窿吧.”

But the shepherd said:\"The sheep is already lost,so I don't need to repair it.\" And so he rejected the neighbor's suggestion.

他说:“羊已经丢了,还修羊圈干什么呢?”他没接受邻居的劝告.