C745 Donkey and radish

After Nan Feng heard these words, he turned to look at Keluo Shuanghua and He Yi, "Let me tell you a story, there used to be an animal called donkey, it was a driver, but it was lazy and didn't like to walk. People just tied up its love of eating radishes in front of its head. If a donkey wants to eat a radish, it must walk nonstop. At the end, its master will give it to eat. Tell me