黑瘤是皮肤癌中最致命的一种癌症。
Melanoma is the most dangerous type of skin cancer and is the leading cause of death from skin disease.
皮肤癌是人类所遭遇到的最为常见的一种癌症。
Skin cancer, or melanoma, is the most common form of cancer in humans.
膀胱癌是常见的一种癌症，男性发病率是女性的两到三倍。
It's one of the most common cancers, and affects two to threetimes as many men as women.
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