The Romans were the first to utilize concrete as a building material.
罗马人首先使用混凝土作建筑材料。
Considered as a building material, wood is not very strong.
木材可以用作建筑材料,但不很结实。
Bamboois unsuitable as a building material for multistory buildings.
竹子是不适合作为建筑材料的对于多层建筑而言。
On June sixth,nineteen thirty-three, workers poured the first load of a building material called concrete.
VOA: special.2009.08.12
He tested the cement, and says less could be used because the rice hull ash makes it a stronger building material.
VOA: special.2009.12.01
Fuller was head of a company that made a light-weight building material.
VOA: special.2010.05.30
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