The illustration of the terrace at Xi'an Hotel

Quick answer：

The 'The illustration of the terrace at Xi'an Hotel' typically refers to a visual representation of the outdoor seating area or space on the roof of the Xi'an Hotel, showcasing its design, decor, and ambiance. Such illustrations are often used in promotional materials or architectural presentations to give a preview of the hotel's facilities. They may include elements such as furniture, plants, lighting, and views of the surrounding area.