下沉一楼庭院实景

Quick answer：

Sunken Courtyard on the First Floor. A sunken courtyard refers to an enclosed garden or courtyard that is lower in elevation than the surrounding areas. It is a traditional Chinese architectural feature that enhances privacy and creates a serene environment. In this context, '下沉一楼庭院实景' describes the actual view or depiction of such a courtyard situated on the first floor of a building.