Wavebands
n. （无线电的）波段( waveband的复数形式 )
🗣️ 情景例句
It's a simple idea, and it will work.
这主意很简单， 而且一定可行。
Adversity successfully overcome is the highest glory.
成功地克服困难是最大的光荣。
Guess!
你猜！