0 to make very small changes to something in order to make it work as well as possible: --
1 to make small changes in (something) in order to make it work as well as possible --
2 to make small changes to something in order to make it as good as possible: --
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.