亡羊补牢,为什么不算晚?

A farmer kept sheep in a pen.
有个农夫,养了一圈羊。

One morning, one sheep was gone.
一天早上,少了一只羊。

A wolf had made a hole in the pen.
原来狼在羊圈上,掏了个洞。

His neighbor said, "Fix the pen!"
邻居劝他:“快把羊圈补好吧!”

The farmer said, "Sheep are already gone."
农夫却说:“羊都丢了,补啥呀。”

That night, another sheep ran away.
结果那天晚上,又跑了一只羊。

Fix it in time, and you lose less.
早点补好圈,后面就不亏啦。