mixed epithelium

例句：

1. 1. The mixed epithelium of the skin is responsible for its natural barrier function.
   皮肤的混合上皮负责其天然的屏障功能。
2. 2. In the study, researchers found that the mixed epithelium could be a promising target for drug delivery.
   研究中，研究人员发现混合上皮可能是药物递送的一个有希望的目标。
3. 3. The pathologist examined the tissue and identified the mixed epithelium as a possible cause of the patient'ssymptoms.
   病理学家检查了该组织，并识别出混合上皮可能是患者症状的可能原因。