be in the middle of something 한창 (바쁘게) ~ 하는 중이다 A: Look, could you do me a favor? B: of course! What's that? A: I can't understand some of the theories that we studied in class. B: No problem! I'm in the middle of doing a report right now, so let's meet in an hour. A: 있잖아, 부탁 하나 들어 줄래? B: 물론이지! 뭔데? A: 수업시간에 배운 이론중에 몇 ..