lucernario del hueco de la escalera
/lˌuθeɾnˈaɾjo ðel ˈweko ðe la ˌeskalˈeɾa/
n
English: stairwell skylight · 楼梯井天窗
Significado：Window protruding though a roof to ventilate and illuminate the stairwell.
English: stairwell skylight · 楼梯井天窗