fact of life
fact-of-life的词性:
n.(名词)
1. Something unavoidable that must be faced or dealt with.
生活中的严酷现实:不可避免而必须面对或处理的事物
2. facts of life The basic physiological functions involved in sex and reproduction. Often used with the.
facts of life 生活方面的基本知识:与性和生殖有关的基础生理知识。常与the 连用