Ppx
[计]= Packet Protocol eXtension,包规约扩充
🗣️ 情景例句
Hello, I would like to speak to ..., please.
喂， 我想找一下……
You could say that too.
也可以这么说啦！
In 1860, a better plan was put forward by an Englishman, William Low.
1860年，一位名叫威廉。洛的英国人提出了一项更好的计划。