As with the duck sentence, 'tough' rather than 'hard' would be better English.
Yep... "The meat/duck is hard" sounds like you could use it to break a window or something! "Tough" is definitely a better word for the English translation.
I answered there. Tough is not very convenient.
Why "This meat is tough' is not correct?
tough is tuhé
I have answered 'This meat is tough' instead of 'The meat is tough' and it was not accepted.
Original sentence is "To maso je tvrdé."