层拱

例句：

1. 1.The building has a layered lantern roof.
   这座建筑有一个多层次的灯笼屋顶。
2. 2.The tunnel is lined with layered stone walls.
   隧道由层层叠石墙装饰。
3. 3.The structure has a layered design that adds depth to the space.
   这个结构的设计层次分明，为空间增添了深度。