for one thing

US /fɔːr wʌn θɪŋ/
UK /fɔːr wʌn θɪŋ/
"for one thing" picture
1.

首先, 其一

used to introduce one reason, among others, for something

:
I can't go out tonight; for one thing, I have to study.
我今晚不能出去;首先,我得學習。
Why didn't you tell me? Well, for one thing, you were busy.
你為什麼不告訴我?嗯,首先,你很忙。