名词
中文翻译：皮肤的外层
同义词：
['epidermis', 'dermis', 'stratum corneum例句：1. The phelloderm is the outermost layer of the skin', 'where cells are shed and new ones form.（表皮是皮肤的最外层，在这里细胞被脱落，新的细胞形成。）']
例句：
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1. The phelloderm is the outermost layer of the skin, where cells are shed and new ones form.
表皮是皮肤的最外层，在这里细胞被脱落，新的细胞形成。
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2. The phelloderm is responsible for protecting the underlying tissues from external damage.
表皮负责保护下面的组织免受外部损伤。
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3. The phelloderm plays a crucial role in maintaining the skin's barrier function.
表皮在维持皮肤屏障功能中起着至关重要的作用。