以下为句子列表：
英文: A decorative or protective covering or cover.
中文: 罩子一个装饰性或保护性的罩或盖
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英文: Testa The hard dry protective covering of a seed, formed from the integuments of the ovule. After fertilization the layers of the integuments fuse and become thickened and pigmented.
中文: 外种皮：覆盖在种子外部的坚硬干燥的保护层，由胚珠的珠被发育形成。受精作用后珠被各层发生融合并加厚着色。
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