Supplement:

Bowls are people's daily necessities. The origin of the bowl can't be verified at present, but it can be traced back to the bowl made of argillaceous pottery in Neolithic age. Its shape is not much different from today's, that is, the mouth is big and the bottom is small, and the mouth is wide and the bottom is narrow. There are bowl feet under it, the height of which is generally half of the diameter of the mouth edge, mostly round and rarely square. What is constantly changing is only the material, technology level and decoration means. The general purpose is to hold food.