tshim-li̍p深入

thorough

thorough; in-depth; deep; to delve into; to go deep into; to go deeply into; to plunge into; to penetrate deeply into

English Wiktionary, “深入” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%B7%B1%E5%85%A5 · confidence: Medium (Wiktionary, Hokkien)