verb
to provide sth that has been missing from a particular situation and is needed in order to improve it 填补 ◆ A cheaper range of products was introduced to plug the gap at the lower end of the market.推出了较廉价的产品系列以填补低端市场的缺口。
( ) to give praise or attention to a new product, book, CD, etc. in order to encourage people to buy it 推广；宣传 ◆ She came on the show to plug her latest album. 她出现在节目中推广她最新的唱片专辑。 SYN promote
(about a piece of electrical equipment) to be able to be connected to the main supply of electricity or to another piece of electrical equipment （电器）能连接 ◆ The modem plugs into the USB port on your laptop. 调制解调器可插到笔记本电脑的 USB 接口。
to become involved with a particular activity or group of people 参与；加入 ◆ The company has doubled its profits since plugging into lucrative overseas markets. 这家公司自从进入利润丰厚的海外市场以後，利润翻了一番。