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
That's the recreation center and restaurant.
那是娱乐中心和餐馆。
Pay somebody back in his own coin.
一报还一报。
Well, it feels strange to have a twin sister.
是呀，有个孪生姐姐是觉得奇怪。