名词
中文翻译：外层壳
同义词：
['periphery', 'outer layer']
例句：
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1.The perispores of the mushroom are a rich source of nutrients.
蘑菇的外层皮是丰富的营养来源。
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2. The scientist studied the perispores to understand how they contribute to the plant's defense mechanism.
科学家研究了外层皮，以了解它们如何为植物提供防御机制。
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3. The perispores of the fungus were found to contain antifungal compounds.
真菌的外层皮被发现含有抗真菌化合物。