Duplexure
分支回路(天线收发转换开关)
🗣️ 情景例句
He ran the drugstore
他经营药房
Keep thing seven years and you will find a use for it.
备而不用。
Though we all got out to examine the fissure, he remained in the car.
我们纷纷下车察看那个大裂缝，他却呆在车上。