0 If something is second nature to you, you are so familiar with it that you can do it easily without needing to think very much about it: --
1 something that is so familiar that it is done without having to think about it: --
Using the computer is second nature to me now.
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.
We kunnen het stap voor stap voltooien, hoe lang de weg ook is en het kan niet worden voltooid, hoe kort de weg ook is, als je niet eens je voetafdruk markeert.