The city put forward "Everything is wrong, Ai Chen" long ago in China: "So, although the minister's salary is large, don't take advantage of the city."
Each discipline has a different definition.
Geographically speaking, a city refers to a combination of people and houses with convenient transportation and a certain area.
According to economic theory, a city is a network system, in which various economic markets-housing, labor, land, transportation, etc. -intertwined.
As for the zoning system, you can also call it according to our custom. We all call it the city, so it is also called new york and Paris abroad. But foreigners generally don't call it that, usually new york and Paris.
There were counties, counties, cities and villages in ancient times. Now we also keep the terms county and village. The city is just a name. It used to be called the city, but now it is called the city. Like Luoyang in the past, it is the same now.
As for your speaking Japanese and Chinese, some of them were invented by the Japanese. The words physics and chemistry were invented by the Japanese.