单词switch plate
un.: 开关板；拔料板网络: 拨料板
拔料板
开关板
If a light-switch plate doesn"t completely cover the hole in the wall that houses the wires, the building won"t fall down.
如果一个开关不能完全掩盖墙上安装电线的洞，整个大楼不会倒塌。