0 laws relating to the conditions in which someone can legally copy parts of a book, film, etc. without the permission of the company that made it or owns it: --
The courts can sometimes be uncertain about what constitutes fair use.
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.