common rafter

例句：

1. 1. The engineer designed thebuilding with a common rafter system toensure stability.
   工程师设计了这座建筑，采用了共同横梁系统以确保稳定性。
2. 2. The construction crewwas working on the common rafter ofthe roof when it suddenly gave way.
   施工队在屋顶的共同横梁上工作时，突然横梁断裂了。
3. 3. The common rafter iscrucial for supporting the weight of the roofand preventing it from collapsing.
   共同横梁对于支撑屋顶的重量和防止其坍塌至关重要。