Fdma
频分多路,频分多址
🗣️ 情景例句
I was so tired
我太累了
While waiting for the train I killed time by reading a book.
在等火车的时候我看书来消磨时间。
The sad truth is that most of us have been brought up to eat certain foods and we stick to them all our lives.
不无遗憾的是， 我们中的大部分人，生来就只吃某几种食品，而且一辈子都这样。