Why do bulls and cows run as soon as they hear that experts are coming?

1 The cow was eating grass, and a bull ran in the distance and said to the cow, "Run, the expert is coming!" A cow was eating grass slowly, and a bull came running in a hurry in the distance. The bull said to the cow, "run, the expert is coming!" ! "

The cow was puzzled and asked, "Why did I run away when the experts came?"

The bull said, "you don't know, experts now brag!" ! "

Bull: "Well, I run, but you are a male. Why are you running? " "

Niu: "You don't know, experts can not only brag, but also pull eggs!" " ! "