setigerous spots

例句：

1. 1.The old man has a setigerous spot on his forehead.
   这位老人额头上有一颗斑点。
2. 2.The doctor found a mole on the patient's arm.
   医生在病人的手臂上发现了一个痣。
3. 3. The child had a small spot on his face that he didn't like.
   这个孩子脸上有一个他不喜欢的小痣。