Are you in any foreign countries and trying to understand same country language! I think you will be required internet connection but if you don’t have internet connection then how will you change your language to other.
Don’t worry now Google updated it’s translate apps for android and now will work offline even without internet connection. It has been announced officially on Google official android blog. Apps includes most spoken language database and if you did find your desired language you can too use it online.
So now you can translate any language to desired language without matters. Apps includes most features and now it is more easy to use. For example: That input “Hello” in English and when you touch enter then you will found that translated version with pronunciation.
Android users may update translate apps if they have already installed or existing and if you are newbie with Google translate then download it from Google play store.