名词
中文翻译：叶柄
同义词：
['leaf-bud', 'leaf-stem']
例句：
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1.The petiolar vascular bundles are responsible for transporting water and nutrients to the leaves.
叶柄的维管束负责将水分和养分输送到叶子。
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2.During photosynthesis, the petiolar cells convert light energy into chemical energy stored in the chloroplasts.
在光合作用过程中，叶柄细胞将光能转化为储存在叶绿体中的化学能。
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3. The petiolar surface is covered with tiny hairs that help trap moisture and prevent water loss.
叶柄表面覆盖着细小的毛，有助于捕捉水分并防止水分流失。