[대화]
A: John, is something wrong?
J: I don't know what's what. I started this new project, but honestly, I don't know what's what with it. It's like a puzzle, and I'm just trying to fit the pieces together.
A: What's the project about?
J: It's an order from my management. Hard to explain.
A: Okay, maybe you can get help from David. He always knows what’s what.

John이 새 프로젝트를 하고 있는데, 뭐가 뭔지 모르겠다고 합니다.

I don't know what's what.
뭐가 뭔지 모르겠습니다.

[대화 해석]

Is something wrong?
뭐가 잘못됐나요?

I don't know what's what.
뭐가 뭔지 모르겠어요.

I started this new project, but honestly, I don't know what's what with it.
새로운 프로젝트를 시작했는데, 솔직히 이게 뭐가 뭔지 모르겠어요.

It's like a puzzle.
퍼즐 같아요.

I'm just trying to fit the pieces together.
조각들을 맞추려 노력하고 있어요.

What's the project about?
어떤 프로젝트인가요?

It's an order from my management.
경영진으로부터 내려온 명령입니다.

Hard to explain.
설명하기 어렵습니다.

It’s hard to explain.
Maybe you can get help from David.

어쩌면 데이빗에게 도움을 받을 수 있을 겁니다.
He knows what’s what.

항상 그는 잘 알고 있어요.
He always knows what’s what.
그는 항상 무엇인지 알고 있습니다.

뭐가 뭔지 모르겠어요.
I don’t know what’s what.