Okay kiddo, let me explain to you what Buenos Aires wines are in a simple way.
Buenos Aires is a big city in Argentina, and Argentina is a country that is famous for making wine. Wine is a delicious drink that comes from grapes that are grown in vineyards.
Buenos Aires is not a place where wine is made because it's a big city with no vineyards, but people in Buenos Aires like to drink wine a lot. They import wine from other parts of Argentina, like Mendoza or Salta, and other countries like Chile or Spain.
There are many types of wine that people in Buenos Aires like to drink, such as Malbec, which is a red wine that is really famous in Argentina, or Torrontes, which is a white wine that is also very popular.
People in Buenos Aires like to enjoy wine with their meals, especially with some traditional Argentine foods like empanadas or steak. They also like to go to wine bars where they can taste different wines and learn more about them.
So, in short, Buenos Aires wines are wines that people in Buenos Aires enjoy drinking, even though they are not made in the city. They come from different regions of Argentina and other countries and are usually paired with delicious food.