0 a situation in which the value of goods a country exports (= sells to other countries) is greater than the value of goods it imports (= buys from other countries), or the size of this difference -- superávit comercial
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.
Podemos completá-lo passo a passo, por mais longa que seja a estrada e não pode ser concluída, por mais curta que seja a estrada, se você nem mesmo marcar sua pegada.