Ppp
[计] 点到点协议\\n[化] PPP法
🗣️ 情景例句
What are you up to?
你呢？你怎样？
I want to go coach, and I'd prefer a morning flight.
我要普通舱，还有，我喜欢早上的班机。
In summer it is often too hot, and in winter it is too cold.
夏天常常太热，冬天又常常太冷。