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1. Thisnew building is made of corrugatediron, which is durable and energy-efficient.
这座新建筑由波纹铁制成,既耐用又节能。
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2. The corrugated iron roof has been a popular choicefor many years.
波纹铁屋顶多年来一直受到许多人的青睐。
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3. The corrugated ironwalls are strong and can withstand heavyloads.
波纹铁墙坚固,能够承受重载。