N-COUNT. (旧时的)姘妇，情妇，妾. In former times, a concubine was a woman who lived with and had a sexual relationship with a man of higher social rank without being married to him.

He was a person of gross sexual appetites.

他是个性欲旺盛的人。

Human beings propagate their species by sexual reproduction,

人类是通过有性生殖来繁衍同类的。

Smash can sexual fracture cure? ? Can you have sequela?

粉碎性骨折能治好吗？？会有后遗症吗？