erection of penis

• 阴茎勃起

erection of penis的用法和样例：

例句

1. Priapism is a prolonged penile erection that is unrelated to sexual stimulation.
   阴茎持久性勃起是指在无性刺激下却发生阴茎勃起过久的现象。
2. Erectile condoms will be put on the slow, it must wear condoms to the root of the penis.
   待阴茎勃起后将安全套缓慢套上，一定要将安全套戴至阴茎的根部。