名词
中文翻译：叶子下部分
同义词：
['leaf underside', 'leaf undersurface', 'underleaf']
例句：
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1. Theunderleaf of the leaves is where most of the nutrients are stored.
叶子的下面部分是储存大部分养分的地方。
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2.She carefully picked up the underleaf of the plant to examine it.
她小心翼翼地拿起植物的下面部分来检查它。
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3. The underleaf of the flower was covered in tiny hairs.
花朵的下面部分覆盖着细小的毛茸茸。