Cách sử dụng
The epidermis is the outer layer of your skin that acts as a protective barrier from the environment. It's the layer closest to the air, and it doesn't have any blood vessels going through it. For example, when you get a sunburn, it's the epidermis that gets damaged. You can use the word 'epidermis' when talking about the different layers of the skin or when discussing skin care products that target the outer layer.