0 produced and used to prevent people sending and receiving unwanted emails, especially advertisements: --
anti-spam legislation/policies/resources/tools
1 intended to prevent spam (= unwanted email) from being received: --
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.