plug in 1. (将插头插入插座)给…接通电源；接通电源 plug in a toaster 给烤面包炉接通电源 All you have to do is to plug in and switch on. 你只须接通电源，一拧开关就行了。 plug in on a programme 接通电源收看(或收听)一档节目 2. 〈美口〉(插上插头般)接通 The husband did not plug in to what the wife was talking about. 丈夫根本没留意听妻子在说些什么。 You have to be very careful that you stay plugged in. 你得非常留心，必须保持消息灵通。