This is the 3616th most frequent Chinese word.
皮肤
Skin.
The word '皮肤' is used here as a noun to refer to the surface layer of the body.
我的皮肤很敏感。
My skin is very sensitive.
In this sentence, '皮肤' is again a noun used to describe the condition of the body's outer layer in relation to health.
他喜欢运动以保持皮肤健康。
He likes to exercise to keep his skin healthy.
Here, '皮肤' is part of the term '皮肤护理', which refers to skincare, showcasing its usage in a more specific context.