Fdma
频分多路,频分多址
🗣️ 情景例句
Do you know the phone number of the restaurant?
知道那家餐厅的电话号码吗
Just to be on the safe side.
为安全起见。
'It's none of your business,' the young man said rudely.
“不关你的事，”那男的毫不客气地说，