Isb
abbr. independent sideband （电信）独立旁带; intermediate sideband （电信）中间旁带
🗣️ 情景例句
Harry Bennett. Is this Susan?
Harry Bennett，是Susan吗？
People are always changing, aren't they?
人总是在变，不是吗？
She didn't visit her step-mother much, though I believe that they used to speak on the phone from time to time.
她不常看望她的继母，虽然，我相信她们过去时不进在电话里聊一聊。