0 the main substance in the cell walls of plants, also used in making paper, artificial threads and cloth, and plastics --
1 the main substance in the cell walls of plants, which is used in making paper, artificial fibers, and plastics --
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.