妹妹 我们认识啊？
“Hey, have we met before?”
THE DIALOGUE REEL
我上个星期刚来上班
“I just started last week.”
妹妹 我们认识啊 ？
“Hey, have we met before?”
那…
“Well…”
“Why are you acting like we know each other when I have no clue who you are?”
Addressing a younger woman as '妹妹' (little sister) is a common colloquial way to sound approachable, though it can feel overly informal or probing depending on social distance.
LEARNING CHUNKS & PARTICLES
do we know each other?
A spoken questioning remark used when someone speaks or acts with unexpected familiarity.
Softens the inquiry while marking mild surprise or skepticism at the other person's familiarity.
VOCABULARY & EXPRESSIONS
Parallel Spoken Cinema Scenes (语义近邻切片)
“Beautiful, do we know each other?”
“We... We don't know them. Don't know them. I don't either.”
“You know me? Of course.”
“(Then I'll make sure you know me well.)”
“Then tell us how and when you meet?”
“(Don't know who I am, huh?) (Fine.)”