crossing structure

例句：

1. 1. The crossing structure is designed to facilitate the movement of goods between countries.
   过境结构旨在促进国与国之间货物的流动。
2. 2. The engineer designed a crossing structure that could withstand extreme weather conditions.
   工程师设计了一种能够抵御极端天气条件的过境结构。
3. 3. The construction of this crossing structure was completed ahead of schedule.
   这座过境结构的建设提前完成。