Duplexure
分支回路(天线收发转换开关)
🗣️ 情景例句
He is interested in collecting foreign stamps.
他对收集外国邮票有兴趣。
No safe wading in an unknown water.
未知水深浅，涉水有危险。
Most games cost about that much.
大部分游戏差不多都是这个价钱。