partial roof fall

例句：

1. 1. The building's partial roof fell off during the storm.
   暴风雨中，这座建筑的部分屋顶坍塌了。
2. 2.The engineer inspected the structure to determine if there were any signs of a partial roof fall.
   工程师检查了结构，以确定是否有任何迹象表明有部分屋顶坍塌。
3. 3.The homeowner was forced to board up the partially roof fallen wall.
   房主被迫封堵了部分坍塌的墙壁。