Ppx
[计]= Packet Protocol eXtension,包规约扩充
🗣️ 情景例句
That's it.
就这样。
Some of our customers have recently expressed interest in your woolen carpets and inquired about their quality and prices.
目前我们的一些客户对你们的纯毛地毯颇有兴趣，并询问其质量和价格。
They work all day.
他们整天营业。