Wavebands
n. （无线电的）波段( waveband的复数形式 )
🗣️ 情景例句
Thanks, Grandpa. Please sit down.
谢谢你， 爷爷。请坐。
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。
The mobile phone is as popular as the beeper nowadays.
现在手机和寻呼机一样普及。