Wavebands
n. （无线电的）波段( waveband的复数形式 )
🗣️ 情景例句
You bet!
当然！
What is the total circulation of this publication.
这家刊物总发行量多少？
What should I do? Maybe I should have told that workmate I knew what he was doing.
我该怎么办？也许我早该对那个工人说我知道他的行为。