The act of translating a document creates new content. Search engines are just looking for content plain and simple, if they see the exact same words all strung together on a page, then it is duplicate. If they see a paragraph in English and the same paragraph translated in Spanish on another page that is a completely unique page in the eyes of the search engines.
If you still don’t feel safe, try translating a page using Google’s translation tool and see how it reads in another language, not exactly the way you would translate text and expect it to have proper sentence structure in another language.