abbr. 概率分部函数（Probability Distribution Function）
🗣️ 情景例句
Because I am still standing here firmily on my feet.
我仍然好端端地站在这里。
He is the people's choice for president.
他是人民选出来的总统。
The man was ordered to pay $3,500 for the cost of the trip.
此人被责令交付旅费3，500英镑，