unchopped beam

例句：

1. 1. The engineer measured the length of the unchopped beam before installing it.
   工程师在安装之前测量了未修剪梁的长度。
2. 2.The construction crew worked on the unchopped beam for several hours without rest.
   建筑工人连续工作了几个小时后没有休息。
3. 3. The beam was used to support the roof and prevent it from collapsing during a storm.
   这个梁用来支撑屋顶，防止在风暴中坍塌。