abbr. 概率分部函数（Probability Distribution Function）
🗣️ 情景例句
Well, you really saved the day for me, Alexandra.
你真的帮了我一个大忙， Alexandra。
I hope you trust me
我希望你信任我。
Why don't you find a job and end this dependence upon your parents?
你为何不找个工作不再依靠你的父母呢？