potency是什么意思

用法例句

The aims of the present study were to examine the effects of coitus on gonadotropin and sex steroid levels in men and women,and to observe whether the hormone level changes if the orgasm occurred during sexual intercourse.

本课题研究性交对促性腺激素与性腺激素水平的影响，并观察激素变化与性高潮的发生有无相关。