Diplexing
双工发送设备, 双工接受设备
🗣️ 情景例句
Is smoking allowed on the train?
火车上允许吸烟吗？
I'm leaving tomorrow,but I haven't packed my suitcases yet.
我明天将离开，但是我还没收拾好行李。
I think May is the best month.
我认为5月最好。