名词
中文翻译：黄土
同义词：
['loam', 'loamy soil']
例句：
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1. The loess layer is the most important part of the soil for agriculture.
黄土层是土壤中最重要的部分，对农业至关重要。
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2. The loess in the region is very fertile and suitable for growing crops.
该地区的黄土非常肥沃，适合种植作物。
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3. The loess has been used as a building material for centuries.
黄土被用作建筑材料已有数百年的历史。