如果冻伤只是浅表的，新的皮肤会长出来。

If the frostbite is only superficial, new skin will form.

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最浅表的一层里包括伞状细胞，细胞核呈不规则深染。

The uppermost layer consists of umbrella cells (not well seen in this image) which may hae irregular hyperchromatic nuclei.

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浅表的上皮细胞并不与活性药物成分结合，因而只是运输区。

The superficial epithelia cells do not bind the active ingredient and thus only serve as a transit area.

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