紫外线是不可见的并且皮肤也感觉不到，但是它能损伤皮肤细胞而造成晒伤，患上皮肤癌的风险也会增加。

UV rays are invisible and can't be felt on the skin but can damage skin cells leading to sunburn and an increased risk of skin cancer.

youdao

紫外线是不可见的并且皮肤也感觉不到，但是它能损伤皮肤细胞而造成晒伤，患上皮肤癌的风险也会增加。

UV rays are invisible and can't be felt on the skin but can damage skin cells leading to sunburn and an increased risk of skin cancer.

youdao