Definition
Fundamental information regarding sexual activity and reproduction, including the process of childbirth.
性知识；生育常识
He decided to have a talk with his son about the facts of life.
他决定与儿子谈谈关于生命的事实。
My school was woefully inadequate when it came to teaching us the facts of life.
我的学校在教导我们关于生命的事实方面严重不足。
She was seventeen years old before anyone told her about the facts of life.
她十七岁时才有人告诉她关于生命的事实。