abbr. 概率分部函数(Probability Distribution Function)
🗣️ 情景例句
What's that?
什么问题?
Improve your time and your time will improve you.
珍惜时间,时间才会珍惜你。
They had a single aim, a solitary goal -- the top!
他们只有一个目标,唯一的目标 -- 顶峰!