a small plastic or rubber object with two or three metal pins which is fixed to the end of a wire on a piece of electrical equipment , and which is pushed into a special opening in a wall in order to connect the equipment to a supply of electricity
发音
例句
1. The girl let her mother plug in the TV set. 女孩叫母亲插上电视机的插头。 2. They used electricity from a plug in the garage. 他们通过车库插座取电。