The urologist specializes in diseases related to the pennis.

泌尿科医生专门研究与阴茎相关的疾病。

The injury to his pennis required immediate medical attention.

他阴茎的伤需要立即就医。

He felt a sharp pain in his pennis and decided to see a doctor.

他感到阴茎剧痛，决定去看医生。

Proper hygiene is important to maintain the health of the pennis.

适当的卫生对于保持阴茎的健康很重要。

The doctor explained the anatomy of the pennis to the medical students.

医生向医学生解释了阴茎的解剖结构。

Some tete- beche pair of the 5 pennis are also know.

此外，还有一些5盆尼邮票的对倒票。