形容词
中文翻译：粗糙的
同义词：
['rough', 'coarse', 'thick', 'thick-set']
例句：
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1.The coarse sand is difficult to remove from the floor.
粗糙的沙子很难从地板上清除。
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2.The coarse brush was used to clean the windows.
粗糙的刷子被用来擦窗户。
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3.Coarse grains are harder to digest than fine ones.
粗粮比细粮更难消化。