penis

阳物；[解剖] 阴茎英释中释nthe outer sex organ of men and male animals, which is used for sex and through which waste water comes out of the body

1 From one perspective, the development of a very small penis could be considered the next step in male hominid evolution..从这一角度看，在原始男性进化中，非常小阴茎的男人在下一步可能优先考虑发展。

2 So the ejaculation of semen goes backwards, up the penis and into the bladder..所以射精时精液是逆向的，顺着阴茎向上到了膀胱里。