Concrete in example sentence
And the feedback in all these cases is concrete, it's unambiguous; you know if you've solved the puzzles or not.
More example sentences with word concrete
As I approached this concrete building, these tiny little windows, barbed wire, high walls, observation towers, and on the inside, these cold, hard spaces, little light or air, the guards are screaming, the doors are clanking, there's a wall of cells filled with so many black and brown bodies. All example sentences