교량이나 대형 건물의 골조를 지탱하기 위해 사용되는 철제 또는 강철제의 큰 들보.
A large, strong beam made of iron or steel, used as a primary support in the construction of bridges and large buildings.
예문:
"The construction crew used a massive crane to lift the steel girder into place for the new highway bridge."
"Engineers inspected every girder of the skyscraper's skeleton to ensure structural integrity after the earthquake."
"The industrial loft featured exposed iron girders that gave the space a modern, raw aesthetic."