论文部分内容阅读
2mm的距离,只是一点点,但是你知道这个距离对肌肤意味着什么吗?皮肤医学研究表明,大多数痘痘就生在肌肤以下2～3mm的皮肤层。
2mm distance, just a little bit, but do you know what this distance means for the skin? Dermatology studies have shown that most acne are born in the skin 2 ~ 3mm below the skin layer.