Multi-Language Site
 

Hi guys

I plan to work on a new website which will support 2 languages - english and turkish language.
Basically it's the same content in english that I want to translate to Turkish language.

What is the best way to go about this so that it isnt counted as duplicate content?
secondly, how should my domain be structured?

1. domain.com/TR OR
2. tr.domain.com

Would be great to receive some advice!