shī / gōng / rén / yuán / zhèng / zài / jiǎn / chá / qiáo / xià / de / gāng / jīn / hùn / níng / tǔ / gòu / zhù / wù施工人员正在检查桥下的钢筋混凝土构筑物。Construction workers are inspecting the reinforced-concrete structure beneath the bridge.