Ppx
[计]= Packet Protocol eXtension,包规约扩充
🗣️ 情景例句
People rushed to buy the shares.
人们抢着购买股票。
What do you do for relaxation?
你做什么消遣？
The big clock which used to strike the hours day and night was damaged many years ago and has been silent ever since.
教堂的钟很大，以前不分昼夜打点报时，但很多年前遭到毁坏，从此便无声无息了。