Once there was a blind.

從前有個瞎子。

One day when he was walking, he stepped the head of the dog who was sleeping.

一天，他正在行路時踩著了一只正在睡覺的狗的腦袋

The dog barked for a while.

狗汪汪汪地叫了一陣。

The blind man went on for miles, this time he stepped the other dog's tail, so this dog barked.

這人又往前走，這回踩著的是另外一只狗的尾巴，狗又汪汪汪地叫起來。

The blind man had thought that it was the first dog, so he said in surprise, It's a wonder that the dog is so long.

瞎子以為還是那條狗，驚詫地說：奇怪，這只狗可真夠長的。