0 to move at the same speed as someone or something that is moving forward so that you stay level with them -- nadążać, dotrzymywać kroku
1 to increase or make progress at the same speed as something or someone else so that you stay at the same level as them -- nadążać
2 to be able to understand or deal with something that is happening or changing very fast -- nadążać, być na bieżąco
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.
Możemy go ukończyć krok po kroku, niezależnie od tego, jak długa jest droga, i nie da się go ukończyć, niezależnie od tego, jak krótka jest droga, jeśli nawet nie zaznaczysz swojego śladu.