木材桁构

例句：

1. 1. The wooden beams are the key to the building's stability.
   这些木梁是建筑稳定性的关键。
2. 2. The wooden trusses were designed to withstand heavy loads.
   这些木桁架设计用来承受重负载。
3. 3. The wooden framework of the house is sturdy and reliable.
   这座房子的木框架坚固可靠。