Ppx
[计]= Packet Protocol eXtension,包规约扩充
🗣️ 情景例句
I heard you cheated on your exams.
我听说你考试作弊了。
After all, laughter is the best medicine.
毕竟，笑是解愁良药。
You have a good command of English.
你的英文能力很强。