0 a building that has been made in a way that does not harm the environment, for example because it is made with sustainable materials (= ones that will continue to be available and not all be used up) and uses natural energy for heat, etc.: --
Eco-buildings come in many different forms.
1 the activity of making buildings that do not harm the environment: --
Most of the structures will be built by volunteers who want to learn the art of eco-building.
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.