그건 관계 없잖아. 그건 다른 문제야.
That's irrelevant. *irrelevant 관계 없는, 부적절한
That has nothing to do with it.
That's another story.
That's a whole 'nother story. * 'nother another의 준말
That's a different ball of wax. *a ball of wax 일
That's a different kettle of fish. *a kettle of fish 문제
That's another can of worms. *a can of worms 문제
That's a horse of different color. *a horse of different color 다른 문제
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