stacked beam

例句：

1. 1. The engineer carefully stacked the beams to build the bridge.
   工程师小心翼翼地堆放梁以建造桥梁。
2. 2. The constructionworkers were stacking the beams forthe next day's work.
   建筑工人正在堆放梁以便第二天的工作。
3. 3. The beamswere stacked in a neat pile,ready for transportation.
   梁被整齐地堆放在一起，准备运输。