Fdma
频分多路,频分多址
🗣️ 情景例句
The security guard asked the stranger for some I.D.
保安要求陌生人出示身份证。
That's fine. What time do I have to be at the airport?
好的。我应该几时到达机场？
I don't think so. Ah! It was Li Lei.
我想不是。啊，是李雷！