good day everyone. I've got 4-languages site, and it's language sectors' URLs named NOT like google recommends. (i mean - no subdomains or subfolders), but in other way. all in root. but in different languages, so same page, example "muscle exercises" has url site/muscle-exercises/ but for french sector it has french url but also in the root of site: site/exercices-musculation/ site already has much visitors, and that's why i worry to move URLs... i know that's better to move all in subfolders, like: site/fr/exercices-musculation/ but still not sure, should i do that if i already have traffic.