nevus

例句：

1. 1. The doctor removed the nevus on her arm.
   医生把她手臂上的痣给去掉了。
2. 2. He noticed a small nevus on his forehead.
   他注意到额头上有一个小的痣。
3. 3. The nevus on her face had been growing for years.
   她脸上的痣已经长了很多年了。