1、buildingmaterial是一个可数名词词组。

2、building material - 它的意思是建筑材料。

3、例句

4、The Romans were the first to utilize concrete as a building material.

5、罗马人首先使用混凝土作建筑材料。

6、As a building material, wood is not sturdy enough.作为一种建筑材料，木材不够结实。