0 a scientific test in which either the people being tested or the person testing them, or both, do not know what is being tested --
1 a test in which people are asked to try a product without knowing its name and then say how good or effective they think it is: --
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.