That will be even better than Mr. Smith's pathetic penis.

比Smith先生阴茎还要好。

But the challenge has been 1) persuading grown men to have penis surgery, while also making it clear that, if you do get circumcised, you still have to practice safe sex.

但挑战在于 1) 说服年男性进行阴茎手术， 同时明确表示，确实接受了包皮环切术， 仍然必须进行安全性行为。