gōng / chéng / shī / xiān / jiǎn / chá / le / qiáo / liáng / de / wù / lǐ / jié / gòu / zài / píng / gū / tā / de / ān / quán / xìng

工程师先检查了桥梁的物理结构，再评估它的安全性。

The engineers first inspected the bridge's physical structure and then assessed its safety.