名詞 plug in:

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

動詞 plug in:

1. plug into an outlet
   同義詞：connect

1. He put plug in his ear because the noise was too loud.
   因為太吵鬧了，他用耳塞堵住了耳朵。
2. The husband didn't plug in to what the wife was talking about.
   丈夫根本沒有留意聽妻子在說些什么。
3. Do you think the students will plug in to these modem philosophy trend?
   你認為學生會對這些現代哲學思潮感興趣嗎？
4. Plug in the radio, please.
   請把收音機的插頭插上。