How do you pronounce 不知?

Q: How do you pronounce 不知? A: bat1 zi1, e.g.

不知 (bat1 zi1) — meaning, pronunciation, examples

不知 (bat1 zi1, bù zhī) — not to know; unaware; unknowingly; fig. not to admit (defeat, hardships, tiredness etc)

不乏其人 (bat1 fat6 kei4 jan4) — not lacking people who share same thought or qualifications
不予置評 (bat1 jyu5 zi3 ping4) — No comments
不值一提 (bat1 zik6 jat1 tai4) — Unworthy of being mentioned
不做 (bat1 zou6) — Not to do
不僅僅 (bat1 gan2 gan2) — Not only
不入虎穴 (bat1 jap6 fu2 jyut6) — lit. not entering tiger's den, meaning without taking risk