Website in two languages

Welcome to WordPress!

There are a lot of articles written about options for adding multiple languages to WP.

It is helpful to read some articles and understand what your options are before selecting one. The best option for you will be very dependent on your site and content.

These are just a few, but you can find more if you search:
http://www.wpbeginner.com/beginners-guide/how-to-easily-create-a-multilingual-wordpress-site/
https://www.elegantthemes.com/blog/resources/the-best-10-wordpress-translation-plugins-for-going-multilingual
https://managewp.com/create-multilingual-wordpress-site

It’s a start!

WPML allows you to do what you’re talking about. There are definitely other options, which the articles outline.

Good luck!