Giải nghĩa:
A big beam, usually made of steel or iron, that supports a building or a bridge.
Ví dụ:
The architect designed the building with steel girders for added strength.
Cách sử dụng
A girder is a long and strong beam that is used to support a roof, a bridge or a building. You can find girders in big constructions like skyscrapers, bridges or warehouses. They are usually made of steel or concrete and they are very important because they give strength and support to the structure they are placed in.
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