Master Guan Yu wanted to eat roast duck after work, so he went to Zhang Fei's booth to buy roast duck.

Before going to Master Zhang's booth, Master Guan asked, "How much is a roast duck?"

Third Master Zhang said, "Fifty dollars each."

Mr. Guan is a little hard of hearing recently, and it's time to get off work again, so there is a lot of noise in front of the booth. Mr. Guan didn't catch Mr. Zhang's answer clearly.

Mr. Guan cleared his throat, summed up the volume and asked Mr. Zhang, "How much is a roast duck?"

Master Zhang looked up at Master Guan and replied in a low voice, "Forty dollars each."

Mr. Guan still didn't hear clearly, and some anxiously asked loudly, "How much is a roast duck?" ! "

Zhang is a little flustered and has a smile on his face. He held out three fingers at the same time and answered loudly in a hurry, "Thirty dollars each."

Mr. Guan listened carefully this time, paid Mr. Zhang thirty dollars, and then went home with the roast duck.