jenny scaffold

例句：

1. 1.The engineer used a jenny scaffold to build the bridge.
   工程师使用一个珍妮脚手架来建造这座桥。
2. 2.The construction worker was using a jenny scaffold to move heavy equipment.
   建筑工人正在使用一个珍妮脚手架来移动重型设备。
3. 3.The architect designed a new jenny scaffold for the building project.
   建筑师为建筑项目设计了一个新的珍妮脚手架。