建筑是十分保守的一个行业，人们不会仅因为环保就用更贵的材料替换现有材料。
The industry is very conservative and they will not go for something that is much more expensive than what they already have just because it is green.
建筑是十分保守的一个行业，人们不会仅因为环保就用更贵的材料替换现有材料。
The industry is very conservative and they will not go for something that is much more expensive than what they already have just because it is green.
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