Rcd
abbr. 剩余电流装置（residual current device）；路由控制数字（Route Control Digit）；接收机载波检测器（Receiver Carrier Detector）
🗣️ 情景例句
We had a good time.
我们玩得很愉快。
May I go out?
我能出去吗？
I hope we can see each other again some time.
希望还能有相见的机会。