To connect (an appliance) to an electrical outlet.
插入电源：将（电器）联在一个电源插座上
To function by being connected to an electrical outlet
接通电源：通过连结电源插座上工作产生功能
a power drill that plugs in.
插上电源的电钻
To connect or be connected to in the manner of an electrical appliance
以电器的方式联结或被联结
The local system is plugged into the national telephone network. This computer plugs into a data bank.
这个地区性电话系统已与全国的电话网连接。这台计算机与资料库连线
&I{Slang} To cause to be closely attuned or responsive to
&I{【俚语】} 使与…紧密协调，使与…产生共鸣
connoisseurs who are plugged into the current art scene.
与当前的艺术景观产生共鸣的鉴赏家
connect an electrical appliance to the mains by inserting a plug in a socket
（将插头插入插座以） 给…接通电源；接通电源