下沉庭院与地下阅览室

提示词

依据给定剖面表现下沉庭院与地下阅览室，庭院地面、采光窗和上方地面层清楚对应，保留确认的墙厚与高差表达。

Use the supplied section to show a sunken court beside a basement reading room, relating court floor, daylight windows, and the upper ground level while retaining confirmed wall-depth and level relationships.