0 an organization that has the power to give official or legal approval to a person, company, product, etc. that has reached a particular standard: --
Civil aviation certification authorities all over the world were satisfied with the aircraft's safety.
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.