abbr. 概率分部函数（Probability Distribution Function）
🗣️ 情景例句
Homemade buttermilk biscuits.
自家的酸奶饼。
Do you have a try?
你有试过吗？
When he had killed the guard, the prisoner of war quickly dragged him into the bushes.
那个战俘杀死卫兵以后，迅速地把尸体拖进了灌木丛。