I’m guessing you’re trying to make the button text language-specific?
If so, you can structure your collections like so-
CMS Collection - Language Blog, e.g. “Spanish”
Name
CTA button text
CMS Collection - Article, e.g. “17 Spanish Swear Words…”
Name
Link to the Language Blog it’s in
Article content
CTA button link
When you create the button on your Article Collection Item page, you can have the text come from the linked Collection, so it’s e.g. “consiguelo ahora” ( get it now ) or whatever blog-specific CTA text you want.
At the same time the specific link might be Article specific, so you can put that at the Article level, and build the button from both.