花池边墙向下外展

提示词

概念花池边墙的外露面从较窄顶缘向地面外展，上口线、斜面与落地边分别可读；轮廓限于本次选定范围，不自动加成宽平坐面。

In the planter-edge concept, let the exposed face flare outward from a narrower top edge toward the ground, keeping the top line, sloping face and ground edge distinct. Keep the profile within the selected extent rather than automatically adding a broad level seat.