名词
中文翻译：铁锈土
同义词：
['red clay', 'reddish clay']
例句：
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1. The ancient city is covered with ferruginous clay, which makes itdifficult to excavate.
这个古城被铁锈土覆盖，这使得挖掘工作变得困难。
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2. The reddish clay ofthe region is rich in minerals and canbe used for building materials.
该地区的红色粘土富含矿物质，可用于建筑材料。
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3. Thereddish clay was found in thearea, providing evidence of its long-standing human habitation.
这种红色粘土在该地区被发现，提供了人类长期居住的证据。