It's not possible to create a website that allows visitors to view everything in various languages. However, you can add multi-language content to each page of your website. For example, add a Program description in English, then right below add the same paragraph translated into a different language.
The Bio section lets you set up multiple bios, so you can easily create a bio in English, French, German, Chinese, etc.
If you want the menu in two languages, you can change the menu tab names by clicking on Website Options ⇨ Menu and creating dual language options, such as Biography/Biografia. The downside of this is that the menu will require more space to display all options in two languages.