Pdu
[计] 协议数据单元
🗣️ 情景例句
And how is your daughter?
对了， 你女儿怎么样？
How often did I tell you to keep quiet?
我告诉你多少次要安静?
But I advise you to check your bag every evening before going home.
但是，我劝你每晚回家前检查下自己的包。