It is one of the components in the uppermost layer of your skin where it helps to retain moisture while protecting the lower layers from exposure to the elements.

这是您的皮肤最外层组织的构成部分，有助于锁住水分，同时保护着下层不暴露在外。

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It is one of the components in the uppermost layer of your skin where it helps to retain moisture while protecting the lower layers from exposure to the elements.

这是您的皮肤最外层组织的构成部分，有助于锁住水分，同时保护着下层不暴露在外。

youdao