转自酷八兔英语笑话http://joke.k8tu.com/ There were these two cows, chatting over the fence between their fields.

The first cow said, "I tell you, this mad-cow-disease is really pretty scary. They say it is spreading fast; I heard it hit some cows down on the Johnson Farm."

The other cow replies, "I ain't worried, it don't affect us ducks."

转自酷八兔英语笑话http://joke.k8tu.com/