楔形木垫

例句：

1. 1. The carpenter used a mortise and tenon joint to make the wooden block.
   木匠用榫卯连接制作了这块木块。
2. 2. The engineer designed the mortise and tenon joint for the bridge.
   工程师为桥梁设计了榫卯连接。
3. 3. The construction crew used mortise and tenon joints to build the support beams.
   施工队使用榫卯连接建造了支撑梁。