Dcna
[计] 数据通信网络体系
🗣️ 情景例句
You'll be glad to hear that Bill is alive and kicking.
比尔现在精神饱满，你听了一定很高兴。
9:25 on Track 12.
9点25分，12轨道。
An electric razor that meets the European Union's safety standards must be approved by American testers before it can be sold in the United States,
一把符合欧洲联盟安全标准的电动剃须刀必须得到美国检测人员的认可，方可在美国市场上销售；