a mole on the skin 皮肤上的痣
N the dark grey dense velvety pelt of a mole, used as a fur 鼹鼠皮
The disease is mainly identified by a fast-growing, irregular dark spot on previously normal skin or in an existing mole that changes in size, colour or texture.
该疾病表现为在之前正常皮肤上出现长大迅速、不规律的黑斑，或者原有的黑痣其大小、颜色或质地发生改变。
Melanomas appear as a mole or freckle that changes colour, size or shape, but are the most dangerous type of skin cancer.
黑色素瘤开始时呈现色素痣或雀斑的外观，但颜色、大小和形状上有区别，是皮肤肿瘤中最危险的一类。
Other warning signs are a change in skin color and uneven borders around a mole.
其他的症状就是皮肤颜色的改变以及一颗痣拥有不平整的边缘。
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