Now I'm sure as everyone in the audience already knows -- I did have to explain it to my nine-year-old late last week -- penises are structures that transfer sperm from one individual to another.
在座的各位一定已经知道—— 上周我需要向我的9岁的小孩解释的—— 阴茎是把精子从某一个体 传送到另一个体的器官