balanced cantilever construction

例句：

1. 1. The bridgeis constructed using a cantileveredstructure.
   这座桥是用悬臂结构建造的。
2. 2. The engineer designed the cantilevered roof for the new building.
   工程师为新建筑设计了悬臂式屋顶。
3. 3.The construction of the cantileveredbridge required extensive excavation.
   建造悬臂式桥梁需要进行广泛的挖掘工作。