The epidermis is the very outside layer of your skin — the part you can touch and that rubs off on a towel. It is thin, it has no blood of its own, and it is always making new cells to replace the old ones. Its quiet jobs are big: it keeps water in and dirt and germs out.

The epidermisepidermis(表皮) is the very outside layer of your skin是你皮膚最外面的一層 — the part you can touch and that rubs off on a towel——就是你摸得到、也會被毛巾磨掉的那一層。 It is thin它很薄, it has no blood of its own自己沒有血管, and it is always making new cells to replace the old ones而且一直在長新細胞取代舊細胞。 Its quiet jobs are big它默默做的工作很重要: it keeps water in把水份留在裡面 and dirt and germs out把髒東西和細菌擋在外面。

Under it sits a thicker layer called the dermis, where you feel pain and where the blood is. In ordinary life people just say “skin.” You will see epidermis in biology class and on cream bottles.

Under it sits a thicker layer called the dermis在它下面是更厚的一層，叫做dermis(真皮), where you feel pain and where the blood is痛覺和血管都在那裡。 In ordinary life在日常生活裡 people just say "skin."人們就直接說「skin(皮膚)」。 You will see epidermis in biology class and on cream bottles你會在生物課本和乳液瓶子上看到epidermis這個字。

Though actually, it is not one even sheet: the epidermis on your palms and soles is much thicker than the skin on your eyelids, which is why a paper cut on a finger and a scratch near the eye do not feel the same.

Though actually不過其實, it is not one even sheet它不是均勻的一整片: the epidermis on your palms and soles手掌和腳底的epidermis than the skin on your eyelids比眼皮上的皮膚 is much thicker厚很多, which is why a paper cut on a finger這也是為什麼手指被紙割到 and a scratch near the eye跟眼睛附近被刮到 do not feel the same感覺不一樣。