名词
中文翻译：硬粒的
同义词：
['hard', 'hardy', 'tough例句：1. The soil is hard grained', 'making it difficult for the plants to grow.（土壤坚硬，使得植物难以生长。）']
例句：
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1. The soil is hard grained, making it difficult for the plants to grow.
土壤坚硬，使得植物难以生长。
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2. The rocks are hard grained, making them difficult to move.
岩石坚硬，使得它们难以移动。
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3. The seeds are hard grained, requiring a long period of cold storage before they can germinate.
种子坚硬，需要长时间的低温储存才能发芽。