Pdu
[计] 协议数据单元
🗣️ 情景例句
Well, I think I may have found a way to do it.
噢， 我想我也许已找到一种办法。
Do you have some post cards?
你有明信片吗？
We'll have to talk it over some more.
这个我们还得再谈一谈。