0 not written about before, and therefore not known about: --
Patterson discovered the previously unrecorded animal in 1999.
The singer told fans he had a new unrecorded song to try out on them.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.