我都一定会知根知底
“I make sure to know them inside and out.”
THE DIALOGUE REEL
任何靠近我的人
“anyone who gets close to me—”
我都 一定会 知根知底
“I make sure to know them inside and out.”
“Actually, I don't care about your background.”
“Do not try to deceive me; I leave nothing to chance.”
In high-stakes or cautious Chinese interpersonal relationships, knowing another's ancestry, background, and motives ('根底') is viewed as the only true safeguard against betrayal.
LEARNING CHUNKS & PARTICLES
to know someone inside and out / know someone's full background
A common idiom meaning to have complete, comprehensive background knowledge of a person.
definitely will / bound to
Used to express absolute resolve or certainty about a future action.