a physiological need for sexual activity
On the other hand, placebo (or time, or giving women with low sex drives encouragement) might be promising, and it certainly seems as if it would merit further study.
FORBES: Placebo Is The Real 'Female Viagra'
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。