Wavebands
n. （無線電的）波段( waveband的復數形式 )
??? 情景例句
She's hard to resist.
真是人見人愛。
He that would have eggs must endure the cackling of hens.
欲圖逸，得先勞。
and we know something of the great variety of the sea bed's topography.
而且我們對海底地形的千變萬化也有了一定的了解。