naevus

例句：

1. 1.The doctor removed the naevus on his face.
   医生把他脸上的痣给去掉了。
2. 2. The patient had a lot of naevus on her arms.
   病人的手臂上有很多痣。
3. 3. The naevus on her neck was very dark and raised.
   她脖子上的痣非常黑而且凸起。