abbr. 概率分部函数(Probability Distribution Function)
🗣️ 情景例句
He studied harder to improve his English.
他更加努力提高英语水平。
You don't have any strong feelings about it?
关于这件事,你没有什么意见吗?
OK. Thank you. Goodbye!
好吧,谢谢你。再见!