leaf buttress

例句：

1. 1. The tree's leaf buttresses are holding up the branches.
   这棵树的叶柄支撑物正在支撑着树枝。
2. 2. The scientist used a leaf buttress to stabilize the structure.
   科学家使用一个叶柄支撑物来稳定结构。
3. 3.The engineer designed a leaf buttress to prevent the roof from collapsing.
   工程师设计了一个叶柄支撑物以防止屋顶坍塌。