How to prevent duplicate content issues in a multilingual online store?

Hello,

How to avoid Shopify duplicated content issues. For example, we run a shop with 6 different languages but all the main content is in English, including blog posts, products and so on. When we publish a post it always is in English but at the same time, it becomes visible for other languages like /fr /it and so on. How to deal with that, we don’t have much time to translate it, so what to do to avoid duplicated content issues here?

What if I will no-follow and no-index other languages? Will it solve that?