0 the medical operation of cutting the tubes through which a man's sperm move, in order to stop his partner getting pregnant --
1 the medical operation of cutting the tubes through which a man’s semen (= liquid containing sperm) move, in order to make him unable to make a woman pregnant --
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.