名词
中文翻译：叶柄
同义词：
['leaf petiole', 'leaf sheath']
例句：
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1.The leaf petiole is a thin, flexible structure that supports the leaf blade.
叶柄是一个薄而灵活的结构，支撑着叶片。
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2.The leaf petiole is responsible for transporting water and nutrients from the roots to the leaves.
叶柄负责将水分和养分从根部输送到叶子。
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3.The leaf petiole is an important part of the plant's structure, providing support for the leaf blade.
叶柄是植物结构的重要组成部分，为叶片提供支撑。