Dai
abbr. 直接存取情报（Direct Access Information）
🗣️ 情景例句
I fell out of the boat!
我摔到船外去了。
We'd like to clear up some points connected with the technical part of the contract.
我们希望搞清楚有关合同中技术方面的几个问题。
What is more, this information line operates 24 hours a day.
而且，这种"问讯线路每天工作24小时。