the thing is

US /ðə θɪŋ ɪz/
UK /ðə θɪŋ ɪz/
"the thing is" picture
1.

문제는, 중요한 것은

used to introduce a statement that explains the most important aspect of a situation or problem

:
I'd love to help, but the thing is, I'm really busy this week.
돕고 싶지만, 문제는 이번 주에 정말 바쁘다는 거야.
He said he'd be here, but the thing is, he often forgets.
그가 여기 올 거라고 했지만, 문제는 그가 자주 잊어버린다는 거야.