plug in

名词 plug in:

1. a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities
   同义词：circuit board, circuit card, board, card, plug-in, add-in

动词 plug in:

1. plug into an outlet
   同义词：connect

1. He put plug in his ear because the noise was too loud.
   因为太吵闹了，他用耳塞堵住了耳朵。
2. The husband didn't plug in to what the wife was talking about.
   丈夫根本没有留意听妻子在说些什么。
3. Do you think the students will plug in to these modem philosophy trend?
   你认为学生会对这些现代哲学思潮感兴趣吗？
4. Plug in the radio, please.
   请把收音机的插头插上。