Obstacles in is Pronunciation is one of the big obstacles for Thai people because there're so many sounds in the English language that their native tongue, their native language, doesn't have.For instance, the "th" sound or the "v" sound, or the "z" sound. Another thing is, because in Thailandd it's an international place where so many people from all around the world come on vacation and so Thai people have to listen to all kinds of accents and have to have the ability to try and understand each and every accent, which even me as a native speaker sometimes has difficulty understanding other accents.