sustaining wall

例句：

1. 1. The engineer designed a supportingwall to reinforce the structure.
   工程师设计了一个支撑墙来加固结构。
2. 2. Theconstruction workers were busy installingthe sustaining walls.
   建筑工人忙于安装支撑墙。
3. 3. Thenew building is supported bya sustaining wall made ofreinforced concrete.
   这座新建筑由钢筋混凝土制成的支撑墙支撑着。