1. plug in : 插上电源；
及物动词
不及物动词
名词
1. 插头
A plug on a piece of electrical equipment is a small plastic object with two or three metal pins which fit into the holes of an electric socket and connects the equipment to the electricity supply.
2. 插座
A plug is an electric socket.
3. （浴缸或水槽的）塞子
A plug is a thick, circular piece of rubber or plastic that you use to block the hole in a bath or sink when it is filled with water.
4. （木头、塑料或蜡制的堵洞）塞子，栓
A plug is a small, round piece of wood, plastic, or wax which is used to block holes.
5. 把…塞住；堵塞；填塞
If you plug a hole, you block it with something.
6. 大肆宣传（尤指书或电影）；为…大做广告
If someone plugs a commercial product, especially a book or a film, they praise it in order to encourage people to buy it or see it because they have an interest in it doing well.
7. see also: earplug;spark plug
8. 停止；中断；取消
If someone in a position of power pulls the plug on a project or on someone's activities, they use their power to stop them continuing.
1. an old or over-worked horse
2. an upright hydrant for drawing water to use in fighting a fire
Synonym: fireplugfire hydrant
3. blockage consisting of an object designed to fill a hole tightly
4. an electrical device with two or three pins that is inserted in a socket to make an electrical connection
Synonym: male plug
5. electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
Synonym: spark plugsparking plug
6. blatant or sensational promotion
7. a wad of something chewable as tobacco