The word "cool" is a linguistic chameleon, morphing itself into different forms with remarkable ease. Sometimes it evokes images of icy landscapes and frigid temperatures, a symbol of calmness. Other times, it bursts forth with the energy of victory, signifying excitement, like a champion soaring to the top after an epic battle. This duality makes

Every modern building with an escalator system has a vital safety feature: backup stairs. These/They/It are essential/crucial/necessary for situations where the escalator becomes inoperative/nonfunctional/stuck. Whether it's due to a power outage/mechanical failure/electrical problem, these stairs provide a reliable alternative/means of getting up