名词
中文翻译：粗糙度
同义词：
['roughness', 'coarseness', 'roughness', 'coarseness']
例句：
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1. The texture of the wool is very coarse.
羊毛的质地非常粗糙。
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2.The grains are coarse and difficult to grind.
谷物粗糙，难以磨碎。
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3.The soil was too coarse for the plants to grow well.
土壤太粗糙，植物无法良好生长。