Take a square. Fold it in half, fold it in half, fold it again, until it gets long and narrow, and then we'll say at the end of that, that's a flap.
Uzmite kvadrat. Presavinite ga na pola, ponovno, presavinite ga opet, sve dok ne postane dug i uzak, i onda ćemo na kraju  toga reći: 'to je krilce'.