double-leaf bascule bridge

例句：

1. 1.The double-leaf bascule bridge is a marvel of engineering.
   双层叶片吊桥是工程的奇迹。
2. 2. The double-leaf bascule bridge connects two cities, providing a convenient transportation route.
   双层叶片吊桥连接两个城市，提供了一个便捷的交通路线。
3. 3. The double-leaf bascule bridge is an important landmark in the city's history.
   双层叶片吊桥是该市历史中的一个重要地标。