I agree with MikeL and FD , i think Asian languages are very hard ... In Arabic we have some letters which are very hard to be said by someone whose mother tongue is not arabic , like the letter ( H .. and it is not h , it is ح , and kh خ .. the ( kh ) sound is like the spanish ( j ) it is also close to Ch in German doch or X in Russian .. also the ( aen ع ) this sounds is very hard because there is no equivalent to it in any other language it is produced in the throat , non arabs would say it like the letter ( O or U ) , but this is not the exact sound.
I don't think any language would be impossible after you practice it or speak it in its enviornemnt .. the problem occures when you learn a language without using it , or hearing it from a native speaker .
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