the thing is
US /ðə θɪŋ ɪz/
UK /ðə θɪŋ ɪz/

1.
問題是, 關鍵是
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.
我很想幫忙,但問題是,我這週真的很忙。
•
He said he'd be here, but the thing is, he often forgets.
他說他會來,但問題是,他經常忘記。