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
Winning isn't everything.
赢并不是一切。
May I reconfirm my flight?
我可以确认我的班机吗？
I only decided to get one today.
我只是今天才决定买的。