0 the act of moving up and down quickly, or of changing repeatedly between one level and another: --
1 the activity of playing with a yo-yo (= a toy consisting of a circular object that can be made to go up and down a long piece of string to which it is tied): --
2 moving up and down quickly, or changing repeatedly between one level and another: --
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.