名词
中文翻译：叶脉
同义词：
['leaf vein', 'leaf veins']
例句：
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1. The leaves of thetree are covered in delicate folialray patterns.
这棵树的叶子上覆盖着精致的叶脉图案。
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2. The scientist studiedthe structure of the plant's folial ray to understand its growthand development.
这位科学家研究了植物叶脉的结构，以了解其生长和发展。
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3. Thefolial ray is a crucialpart of the plant's life cycle, providing support for photosynthesis.
叶脉是植物生命周期中至关重要的部分，为光合作用提供支持。