Second, if it is a bigger city, it will disappear.
Third, most cities do not have field operations, mainly because urban defense is limited. Look at the Three Kingdoms. Cao Cao is cutting wheat outside the city.
Fourth, generally speaking, cities are mainly commercial areas and squares are residential areas.
Fifth, in ancient times, general grain was ready, because there was no land and no supply.
Sixth, so generally speaking, there is no land in the city.
What doubts can you ask? I don't have many friends. I think adoption is good, so I use my hands.