it is impossible -even for native speakers - to pronounce certain words and in particular numbers I think in a way that makes duolingo accept them. This seems to be true for more than one language (think I have heard / read about it from both a Norwegian testing Norwegian and a Ukrainian testing Ukrainian language.
it is impossible -even for native speakers - to pronounce certain words and in particular numbers I think in a way that makes duolingo accept them. This seems to be true for more than one language (think I have heard / read about it from both a Norwegian testing Norwegian and a Ukrainian testing Ukrainian language.