Actually is a little harder than that.
Lets says that you want to enable a multi-language website for SEO. That means that the content will be also multilanguage and you have to organize that. You could say "exactly, that is how youtube works" but come on, youtube is from Google it will always have good SEO even if they do things that doesn't work for anyone else.
For Google and multilanguage thing is quite simple: A website has a base language and the rest of the languages are just frontend languages to choose. You are confusing multilanguage with regionalized (country based) websites which do rank diffent because they anchor in each country domain just like ebay.
So if SEO is the concern you should create one separate Chevereto for each country, otherwise stick to a base language.