My site set up 2 languages en-US and it-IT. I created a page "About Us" and have it translated.

However, even the "About Us" appears on the menu bar but no matter I am in EN or IT, the link is always "~/en-US/About-Us".

Did I miss any setup? My expectation is when it is in EN language, the link should be ~/en-US/About-Us" and goes to English version; and when it is in IT language, the link should be ~/it-IT/About-Us" and goes to Italian version. How can I set this up?