Hello,
To create the multilanguage site you need additional plugins https://colorlib.com/wp/wordpress-multilingual-plugins/ Some of the multilingual plugins come with the multicurrency feature, for example, WPML plugin. Or look for another third-party plugin to implement that.
Read our docs also – https://xstore.helpscoutdocs.com/article/30-base-theme-translation https://xstore.helpscoutdocs.com/article/31-translation-with-wpml
Regards