Old people and melanomas versus great sushi and desperate women 一边是老人和黑瘤一边是美味的寿司和漂亮女人
2.
Cleaver of the university of california at san francisco , for instance , has shown that people with the disease xeroderma pigmentosum , in which melanocytes are destroyed by exposure to the sun , suffer from significantly higher than normal rates of squamous and basal cell carcinomas , which are usually easily treated 这两种癌通常很容易治疗，更能致命的是恶性黑瘤，但却较少见（在皮肤癌患者中只占4 % ） ，而且只有肤色浅的人才容易得。
