名词
中文翻译：内部根鞘
同义词：
['internal root sheath', 'internal rootcap']
例句：
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1. The plant's internal root sheath is acrucial part of its growth.
植物的内部根鞘是其生长的关键部分。
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2. The roots ofthe tree are protected by its internal rootsheath.
树的根部被它的内部根鞘保护着。
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3. During the germination process, the seeds need to pass through theinternal root sheath.
在发芽过程中，种子需要通过内部根鞘。