Your website comes out in whichever language you use to ask for it: describe your business in Spanish and the site is born in Spanish; do it in Galician, Catalan or English and it's born in that language instead. And it's not just the visible text: photo descriptions and legal pages come out in your language too —currently Spanish and Galician, with more languages on the way.
The language belongs to the project, not to a single message
Once set, the language becomes a property of your website: even if one day you send a one-off message in a different language —to test something, say— your website doesn't switch languages because of that. It only changes when you ask for it clearly: "put it in Galician" or "translate it into English."
Translating the whole website
Asking to "translate it into English" does exactly that: it translates the entire website in one go —text, photo descriptions and legal pages— and from then on the project is in that language. No need to redo anything or explain your business from scratch again. Like any change you ask the assistant for, translating uses credits from your plan.
Several languages at once, not yet
What isn't available yet is having your website in several languages at the same time, so each visitor sees it in their own. For now your website has a single language, whichever one you choose, and multi-language support is on our roadmap.
If your business serves customers in more than one language, for now the best move is deciding which one matters most day to day and starting there: you can always translate the whole thing later.