abbr. 概率分部函数（Probability Distribution Function）
🗣️ 情景例句
She'll love it. It's a once-in-a-lifetime offer, Harry.
她也会喜欢的。这是个千载难逢的机会， Harry。
Yes, she lives just across the street.
是的，她就住在街对面。
We can make a fire and warm ourselves, I suggested.
“我们可以生火取暖，”我说道。