名词
中文翻译：废渣
同义词：
['waste', 'scrap', 'rubble']
例句：
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1. The old building was filled with dust and debris, making it difficult to clean.
这座旧建筑满是灰尘和碎片，清理起来很困难。
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2. The company had to discard a lot of outdated equipment as it became obsolete.
这家公司不得不丢弃许多过时的设备，因为它已经过时了。
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3. The construction site was littered with broken tools and scrap metal, making it dangerous for workers.
施工现场到处都是破损的工具和废金属，对工人来说非常危险。