你们今天有来过这儿吗
“were you here today?”
THE DIALOGUE REEL
“Out of respect for Engineer Kaisawa,”
你们 今天 有来过 这儿 吗
“were you here today?”
没有
“No.”
“You were never here today. Remember that story.”
Granting an escape or cover-up 'for the sake of someone's face' (Mianzi) requires total discretion, often established via leading, rhetorical questions to form an instant tacit pact.
LEARNING CHUNKS & PARTICLES
have ever been/come
Combines the aspectual particle 'guo' with 'you' to emphasize past occurrence, common in southern Mandarin or scripted suspense contexts.
here
Standard Northern spoken Mandarin demonstrative pronoun for location.
Turns the statement into a polar question, here used rhetorically to prompt a rehearsed denial.