Narrowband
[计] 窄带
🗣️ 情景例句
I guess we'll have to exchange it, too.
我想我们还得去换一件。
I tried to call Mr. Cooper,but the line was busy.
我试着呼叫库珀先生，但是线老是忙。
They were glad of the examination being over.
他们为考试结束了而高兴。