"Duck class" refers to the group that specializes in roast duck in the kitchen of the old restaurant. There are drama classes in singing and duck classes in eating. As the name implies, the formation of duck classes comes from this.
How long does it take for the duck to be roasted? How to control the heat to roast the tenderness of the crispy outside? How many slices can a duck be cut into? No one knows more about these problems than the people in the duck class. It can be said that the duck class is the group of people who knows ducks best and can make roast ducks.