Wavebands
n. （无线电的）波段( waveband的复数形式 )
🗣️ 情景例句
And a good paint job.
还需要好好的粉刷。
Everybody's business is nobody's business.
人人都管，大家不管。
Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
洞穴勘查——或洞穴勘探——是一项比较新的体育活动。