Wavebands
n. （无线电的）波段( waveband的复数形式 )
🗣️ 情景例句
OK. Considering this point and the large quantity you ordered,
好吧。考虑到这个原因以及你们订货数量大，
Don't forget to put stamps on the letter before you mail it.
不要忘记在寄信以前把邮票贴在信封上。
Where is she?
她在哪里？