0 a person who is extremely interested in only one thing, often to such a degree that they are mentally ill: --
1 suffering from or relating to monomania (= a condition in which someone is extremely interested in one thing): --
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.