0 to start to have an effect or to happen: --
It takes half an hour for the medication to kick in.
3 to give something, especially money or help, together with others: --
We should be able to get him a nice retirement present if we all kick in.
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.