Pdu
[计] 协议数据单元
🗣️ 情景例句
Whats your ring size?
你的戒指是几号的？
Then this evening I went jogging with my wife.
接着今天晚上我和妻子一起去慢跑。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，